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Science 6 Flashcards

1
Q

have soft bodies and mantles; mantle sometimes forms a shell

A

mollusks

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2
Q

segmented worms; may have setae

A

annelids

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3
Q

radial symmetry; tube feet; live in the water

A

echinoderms

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4
Q

The type of symmetry having two identical sides when divided down the middle is called _________________ symmetry.

A

bilateral

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5
Q

A tiny stinging organelle found on some animals is called a/an __________.

A

nematocyst

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6
Q

The type of symmetry having body parts that repeat around a central part is called __________ symmetry.

A

radial

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7
Q

An animal is a/an __________ __________ if it eats organisms that float through the water.

A

filter feeder

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8
Q

A/an ______________________ organism has the ability to exist independent of another organism.

A

free-living

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9
Q

A/An ___________________ lives on or in another living organism (host) and depends on the host for food.

A

parasite

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10
Q

The organisms in most animal phyla are called __________ because they do not have backbones.

A

invertebrates

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11
Q

All arthropods have __________.

A. jointed legs, a segmented body, and an exoskeleton
B. 3 pairs of legs, 3 body parts, and wings

A

jointed legs, a segmented body, and an exoskeleton

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12
Q

Arthropods molt because __________.

A. they are active at night
B. they outgrow their exoskeleton and grow a new one

A

they outgrow their exoskeleton and grow a new one

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13
Q

Arthropods with many body segments and many pairs of legs may be either __________.

A. centipedes or millipedes
B. arachnids or crustaceans

A

centipedes or millipedes

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14
Q

Spiders and ticks are examples of __________.

A

arachnids

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15
Q

__________ are examples of crustaceans.

A. Mites and scorpions
B. Crabs and shrimp

A

Crabs and shrimp

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16
Q

The stages of __________ metamorphosis are egg, nymph, and adult.

A. incomplete
B. complete

A

incomplete

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17
Q

has 5 pairs of legs, has 2 pairs of antennae, breathes through gills, and most have a claw

A

crustacean

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18
Q

has 2 body segments and 8 legs

A

arachnid

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19
Q

has 3 body segments, 3 pairs of legs, and most have wings

A

insect

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20
Q

warm-blooded animal with feathers

A

bird

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21
Q

warm-blooded animal with hair; feeds its young with milk

A

mammal

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22
Q

cold-blooded animal with scaly skin; lays eggs on land

A

reptile

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23
Q

cold-blooded animal with smooth skin; spends part of its life in water and part on land

A

amphibian

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24
Q

cold-blooded animal that breathes through gills; skeleton is made of cartilage or bone

A

fish

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25
Q

The __________ is the only mammal that can fly.

A

bat

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26
Q

Mammals called _________________ lay eggs.

A

monotremes

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27
Q

A fatty layer called ________________ insulates some animals.

A

blubber

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28
Q

Animals that eat only plants are called _____________________.

A

herbivores

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29
Q

Animals are _______________ if they are active during the night.

A

nocturnal

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30
Q

plants with roots and tubelike structures that transport water, food, and nutrients

A

vascular

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31
Q

plants that have rhizoids and that absorb water through their leaves

A

nonvascular

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32
Q

ferns and horsetails grow from these underground stems

A

rhizomes

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33
Q

leafy branches of a fern

A

fronds

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34
Q

thin rootlike structures of mosses

A

rhizoids

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35
Q

Which plant is nonvascular?

A. conifer
B. fern
C. moss

A

moss

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36
Q

Which plant is a seedless vascular plant?

A. conifer
B. fern
C. moss

A

fern

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37
Q

Which type of plant produces seeds that usually develop inside a cone?

A. angiosperm
B. gymnosperm
C. moss

A

gymnosperm

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38
Q

Which type of plant produces flowers and fruit?

A. angiosperm
B. gymnosperm
C. liverwort

A

angiosperm

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39
Q

What protects a broken pine branch from disease and insects?

A. rhizome
B. rhizoid
C. resin

A

resin

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40
Q

[True or False]

Cotyledons are tiny seed leaves of the plant embryo that contain stored food for the seed.

A

True

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41
Q

[True or False]

Most monocots have taproots and woody stems.

A

False

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42
Q

[True or False]

Dicots have long, narrow leaves with parallel veins.

A

False

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43
Q

[True or False]

Roots absorb water and nutrients, affect the size and health of the plant, and help to anchor the plant in the soil.

A

True

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44
Q

describes angiosperms that can live for three or more years

A

perennial

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45
Q

arranged in a circle in a dicot’s stem

A

vascular tissue

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46
Q

describes angiosperms that need two growing seasons to fully develop

A

biennial

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47
Q

describes a seed with only one cotyledon

A

monocot

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48
Q

describes angiosperms that live for only one growing season

A

annual

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49
Q

describes a seed with two cotyledons

A

dicot

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50
Q

layer of cells that reproduce to make more xylem and phloem, allowing the plant to grow wider each year

A

cambium

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51
Q

tubes that carry water and minerals from the roots to the top of the plant

A

xylem

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52
Q

tubes that carry sugars and foods throughout the plant

A

phloem

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53
Q

many thin roots that spread out in all directions

A

fibrous roots

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54
Q

root that continues to grow straight down into the soil and may have other roots branching off of it

A

taproot

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55
Q

the grouping of tubes that carry water and food to all parts of the plant

A

vascular bundles

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56
Q

What are the two jobs of a stem?

A. to provide support
B. shade the roots
C. to transport water, food, and nutrients

A

A. to provide support

C. to transport water, food, and nutrients

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57
Q

What are two things we can learn from looking at tree rings?

A. the age of tree
B. the health of tree
C. the height of tree

A

A. the age of tree

B. the health of tree

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58
Q

vertical columns of the periodic table

A

groups

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59
Q

center part of an atom

A

nucleus

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60
Q

has a positive charge; located in the nucleus

A

proton

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61
Q

horizontal rows of the periodic table

A

periods

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62
Q

has a negative charge; travels around the nucleus

A

electron

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63
Q

smallest piece of an element that can be recognized as that element

A

atom

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64
Q

has no charge; located in the nucleus

A

neutron

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65
Q

The number of protons plus neutrons is the atom’s approximate __________.

A. atomic number
B. atomic mass
C. atomic model
D. atomic nucleus

A

atomic mass

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66
Q

Dmitri Mendeleev developed the periodic table of the elements, which __________ elements.

A. weighs
B. alphabetizes
C. measures
D. classifies

A

classifies

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67
Q

Abbreviations for the names of elements are chemical __________.

A. shells
B. periods
C. symbols
D. families

A

symbols

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68
Q

formed when atoms combine

A

molecule

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69
Q

molecules formed from two or more different elements

A

compound

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70
Q

symbols and numbers abbreviating the name of a compound

A

chemical formula

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71
Q

an atom that has gained or lost electrons

A

ion

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72
Q

a reaction in which molecules combine to form a new substance

A

synthesis reaction

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73
Q

the process in which different types of atoms join and form a new substance

A

chemical change

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74
Q

a reaction in which a compound is broken down into simpler compounds

A

decomposition reaction

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75
Q

Atoms bond with other atoms to complete their outer __________.

A

shells

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76
Q

The atoms share __________ in a covalent bond.

A

electrons

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77
Q

An ionic bond forms when positively and negatively charged ions __________ each other.

A

attract

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78
Q

What can burn or corrode?

A. an acid
B. a base
C. both an acid and a base

A

an acid

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79
Q

What changes colors of an indicator?

A. an acid
B. a base
C. both an acid and a base

A

both an acid and a base

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80
Q

What has a bitter taste?

A. an acid
B. a base
C. both an acid and a base

A

a base

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81
Q

What has a sour taste?

A. an acid
B. a base
C. both an acid and a base

A

an acid

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82
Q

What is slippery?

A. an acid
B. a base
C. both an acid and a base

A

a base

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83
Q

[True or False]

Acids that dissolve in water are called alkalis.

A

False

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84
Q

[True or False]

A neutral solution is neither acidic nor basic.

A

True

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85
Q

[True or False]

The pH scale is used to determine neutral solutions of a substance.

A

False

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86
Q

[True or False]

Hydrogen ions form when acids are dissolved in water.

A

True

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87
Q

[True or False]

A reaction between an acid and a base can form a salt.

A

True

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88
Q

https://pasteboard.co/JPN3ubl.png

The 1 on the diagram is pointing to a(n) __________.

A

electron

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89
Q

https://pasteboard.co/JPN3ubl.png

The 2 on the diagram is pointing to a(n) __________.

A

proton

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90
Q

https://pasteboard.co/JPN3ubl.png

The 3 on the diagram is pointing to a(n) __________.

A

neutron

91
Q

https://pasteboard.co/JPN3ubl.png

The 4 on the diagram is pointing to the __________.

A

nucleus

92
Q

a substance; only one kind of atom

A

element

93
Q

the smallest piece of an element that can be recognized as that element

A

atom

94
Q

the study of matter—what it is made of, what its usual characteristics are, how it reacts to other matter

A

chemistry

95
Q

an atom that has gained or lost electrons

A

ion

96
Q

the process in which different types of atoms join and form a new substance

A

chemical change

97
Q

based on the number of protons in the nucleus

A

atomic number

98
Q

chemical symbols and numbers abbreviating the name of a compound

A

chemical formula

99
Q

an ionic compound produced from a reaction between an acid and a base

A

salt

100
Q

Are lemons, vinegar, and tomato juice examples of acids or bases?

A. acids
B. bases

A

acids

101
Q

What is slippery to the touch?

A. an acid
B. a base

A

a base

102
Q

What has a sour taste?

A. an acid
B. a base

A

an acid

103
Q

What can burn and be corrosive?

A. an acid
B. a base

A

an acid

104
Q

What has a bitter taste?

A. an acid
B. a base

A

a base

105
Q

Are baking soda, soap, and bleach examples of acids or bases?

A. acids
B. bases

A

bases

106
Q

The sum of the number of protons and neutrons results in an atom’s approximate __________.

A. pH scale
B. electrons
C. atomic number
D. atomic mass

A

atomic mass

107
Q

Scientist __________ developed a simplified model of an atom.

A. Niels Bohr
B. Dmitri Mendeleev
C. Ernest Rutherford
D. Robert Boyle

A

Niels Bohr

108
Q

The scientist __________ developed the periodic table of the elements.

A. Niels Bohr
B. Dmitri Mendeleev
C. Ernest Rutherford
D. Robert Boyle

A

Dmitri Mendeleev

109
Q

When positively and negatively charged ions attract each other they form a(n) __________.

A. indicator
B. neutron
C. ionic bond
D. covalent bond

A

ionic bond

110
Q

In a(n) __________ atoms share electrons.

A. element
B. salt
C. ionic bond
D. covalent bond

A

covalent bond

111
Q

A __________ reaction occurs when a compound is broken down into simpler compounds.

A. synthesis
B. replacement
C. decomposition
D. combustion

A

decomposition

112
Q

The compound H2CO3 has __________ atom(s) of carbon in it.

A. one
B. two
C. zero
D. three

A

one

113
Q

You can determine the concentration of acids or bases in a solution by using __________.

A. a salt
B. the pH scale
C. the periodic table of elements
D. a particle accelerator

A

the pH scale

114
Q

A substance that changes color when exposed to acid or base solutions is called a(n) __________.

A. salt
B. ion
C. molecule
D. indicator

A

indicator

115
Q

https://pasteboard.co/JPN73xs.png

Use the diagram to match each part of a periodic cell with the correct label.

1 = ?

A

atomic number

116
Q

https://pasteboard.co/JPN73xs.png

Use the diagram to match each part of a periodic cell with the correct label.

2 = ?

A

element nature

117
Q

https://pasteboard.co/JPN73xs.png

Use the diagram to match each part of a periodic cell with the correct label.

3 = ?

A

chemical symbol

118
Q

https://pasteboard.co/JPN73xs.png

Use the diagram to match each part of a periodic cell with the correct label.

4 = ?

A

atomic mass

119
Q

The element copper has 29 protons, so it has __________ (how many?) electrons

A

29

120
Q

What material does not allow electricity to flow through it?

A. an insulator
B. a resistor

A

an insulator

121
Q

What circuit has multiple paths through which electricity can flow?

A. parallel
B. series

A

parallel

122
Q

What circuit has only one path through which electricity can flow?

A. parallel
B. series

A

series

123
Q

What material reduces the flow of electricity?

A. conductor
B. resistor

A

resistor

124
Q

What material allows electricity to flow through it easily?

A. conductor
B. insulator

A

conductor

125
Q

The ___________ is a measurement of the amount of electrical push, or force, in a circuit.

A

volt

126
Q

The ___________ is the unit that measures power, or how fast work is done.

A

watt

127
Q

A/an ____________ is a liquid or paste substance that conducts electricity.

A

electrolyte

128
Q

A power source called a/an ____________ contains one or more electric cells.

A

battery

129
Q

[True or False]

The strength of an electromagnet may be affected by the size and shape of its core.

A

True

130
Q

[True or False]

The flow of electricity can produce a magnet, and a magnet moving around or in wire can produce electricity.

A

True

131
Q

[True or False]

William Sturgeon discovered that a current traveling through a wire produces a weak magnetic field in the live wire.

A

False

132
Q

[True or False]

Magnetic force is strongest at the center of a magnet.

A

False

133
Q

[True or False]
Joseph Henry and Michael Faraday discovered that moving a magnet around or through a loop of wire produces electricity in the wire.

A

True

134
Q

uses a magnet to convert motion into electrical energy

A

generator

135
Q

what opposite poles do when brought near each other

A

attract

136
Q

a coil of wire with a core attached to an electrical source

A

electromagnet

137
Q

any material that has the ability to attract iron

A

magnet

138
Q

what the same poles do when brought near each other

A

repel

139
Q

eats mainly insects

A

insectivore

140
Q

eats both plants and animals

A

omnivore

141
Q

eats other animals

A

carnivore

142
Q

eats plants only

A

herbivore

143
Q

An __________ has three body segments and three pairs of legs.

A

insect

144
Q

An arthropod with two body segments and eight legs is an __________.

A

arachnid

145
Q

An arthropod with five pairs of legs and a claw is a __________.

A

crustacean

146
Q

A __________ has many body segments and many legs.

A

centipede

147
Q

Amphibians, fish, and reptiles are __________ animals.

A

cold-blooded

148
Q

Birds and mammals are __________.

A

warm-blooded

149
Q

1st step of a butterfly’s metamorphosis

A

egg

150
Q

2nd step of a butterfly’s metamorphosis

A

larva or caterpillar

151
Q

3rd step of a butterfly’s metamorphosis

A

pupa or chrysalis

152
Q

4th step of a butterfly’s metamorphosis

A

adult

153
Q

Jesse found a sea star at the beach. He knew it was __________ because it had radial symmetry and tube feet.

A. a mollusk
B. an echinoderm
C. a sponge
D. a flatworm

A

an echinoderm

154
Q

Even though they look different, both an octopus and an oyster are ____________ because they have a soft body and a mantle.

A. mollusks
B. echinoderms
C. roundworms
D. arthropods

A

mollusks

155
Q

A(n) ____ gets its food from water that flows through its body.

A. jellyfish
B. ostrich
C. sponge
D. crab

A

sponge

156
Q

Animals such as earthworms are classified as ____ because they have segments and move by using setae.

A. annelids
B. roundworms
C. arthropods
D. mollusks

A

annelids

157
Q

Shrimp and spiders are both considered to be ____ because they have jointed legs, a segmented body, and an exoskeleton.

A. annelids
B. mammals
C. echinoderms
D. arthropods

A

arthropods

158
Q

[True or False]

Invertebrates are animals that have backbones.

A

False

159
Q

[True or False]

Vertebrates can grow larger than invertebrates because they are warm-blooded.

A

False

160
Q

[True or False]

The stages of incomplete metamorphosis are egg, nymph, and adult.

A

True

161
Q

[True or False]

Animals that eat organisms that float through the water are called filter-feeders.

A

True

162
Q

[True or False]

Monkeys and elephants use echolocation to find food.

A

False

163
Q

[True or False]

Nematocysts are tiny stinging organelles found on some animals.

A

True

164
Q

has feathers

A

bird

165
Q

has smooth skin

A

amphibian

166
Q

has hair

A

mammal

167
Q

has scaly skin

A

reptile

168
Q

What characteristic do most of the animal phyla have in common?

A. They are vertebrates.
B. They are warm-blooded.
C. They are invertebrates.
D. They have four legs.

A

They are invertebrates.

169
Q

When plants are classified by how they transport water, scientists group them as

A. monocots or dicots
B. seedless or seed-bearing
C. vascular or nonvascular
D. angiosperms or gymnosperms

A

vascular or nonvascular

170
Q

Which plant is not a vascular plant?

A. liverwort
B. club moss
C. horsetail
D. ginkgo

A

liverwort

171
Q

Mosses and liverworts have small, rootlike structures called __________.

A. rhizomes
B. rhizoids
C. hyphae
D. tubers

A

rhizoids

172
Q

___________ are vascular plants with tall, hollow, jointed stems.

A. Horsetails
B. Mosses
C. Liverworts
D. Ginkgoes

A

Horsetails

173
Q

Ferns and horsetails grow from underground stems called __________.

A. rhizoids
B. hyphae
C. tubers
D. rhizomes

A

rhizomes

174
Q

Last summer John did not pull all the carrots in his garden. This year he noticed that those carrots grew flowers and produced seeds. This happened because carrots are a(n) __________ plant.

A. annual
B. perennial
C. biennial
D. centennial

A

biennial

175
Q

Maria has picked blueberries from the bush on her grandpa’s farm for the past five years. A blueberry bush is an example of a(n) __________ plant.

A. annual
B. perennial
C. biennial
D. centennial

A

perennial

176
Q

Mrs. Abbott enjoys having different flowers in her yard each year. She should choose __________ flowers, plants that live for only one growing season.

A. annual
B. perennial
C. biennial
D. centennial

A

annual

177
Q

The first root that emerges from a seed is called a(n) __________.

A. aerial root
B. taproot
C. fibrous root
D. primary root

A

primary root

178
Q

Which type of plant has 2 cotyledons?

A. a monocot
B. a dicot

A

a dicot

179
Q

Which has fibrous roots?

A. a monocot
B. a dicot

A

a monocot

180
Q

Which has 1 cotyledon?

A. a monocot
B. a dicot

A

a monocot

181
Q

Which has vascular tissue arranged in a circle?

A. a monocot
B. a dicot

A

a dicot

182
Q

Which has flowers with petals in groups of 3 or 6?

A. a monocot
B. a dicot

A

a monocot

183
Q

Which has leaves with branching veins?

A. a monocot
B. a dicot

A

a dicot

184
Q

[True or False]

Herbaceous plants have hard, woody stems.

A

False

185
Q

[True or False]

Fibrous roots grow straight down into the soil.

A

False

186
Q

[True or False]

Gymnosperms include cycads, ginkgoes, gnetophytes, and conifers.

A

True

187
Q

[True or False]

Trees can grow wider because the cambium cells produce more xylem and phloem.

A

True

188
Q

[True or False]

You can tell how old a tree is and how much water it received each year by looking at its rings.

A

True

189
Q

a leafy branch of a fern

A

frond

190
Q

the tiny seed leaves of the embryo

A

cotyledon

191
Q

a sticky substance that protects a pine tree from diseases and insects when a branch is broken

A

resin

192
Q

tubes that carry sugars and food throughout the plant

A

phloem

193
Q

tubes that carry water and minerals from the roots to the top of the plant

A

xylem

194
Q

a tightly coiled developing frond

A

fiddlehead

195
Q

has only one path for the flow of electricity

A

series circuit

196
Q

any material that has the ability to attract iron

A

magnet

197
Q

a continuous unbroken path through which electricity can flow

A

circuit

198
Q

a very small circuit with all the parts built into it

A

integrated circuit

199
Q

has multiple paths for the flow of electricity

A

parallel circuit

200
Q

a material through which electricity cannot flow

A

insulator

201
Q

a material that allows electricity to flow through it easily

A

conductor

202
Q

a material that reduces the flow of electricity

A

resistor

203
Q

a liquid or paste substance that conducts electricity

A

electrolyte

204
Q

uses a magnet to convert motion into electrical energy

A

generator

205
Q

[True or False]

Static electricity occurs when a circuit and a power source allow electrons to move.

A

False

206
Q

[True or False]

Current electricity is produced when charges build up on the surface of an object.

A

False

207
Q

[True or False]

Plastic, wood, and glass are good insulators.

A

True

208
Q

[True or False]

A switch is a conductor that can be moved to bridge the gap or not bridge the gap in a circuit.

A

True

209
Q

[True or False]

Magnetic force is strongest at the middle of the magnet.

A

False

210
Q

[True or False]

The area of magnetic force around a magnet is called the magnetic field.

A

True

211
Q

[True or False]

Integrated circuits signal information by opening and closing electrical circuits in sequence.

A

True

212
Q

[True or False]
The brain of the computer that tells the other parts of the computer what to do is called the central processing unit (CPU).

A

True

213
Q

Which unit measures how much current flows through a given part of a circuit in one second?

A. ampere
B. volt
C. joule
D. watt

A

ampere

214
Q

Which unit measures the amount of electrical push, or force, in a circuit?

A. ampere
B. volt
C. joule
D. watt

A

volt

215
Q

Which unit measures power, or how fast work is done?

A. ampere
B. volt
C. joule
D watt

A

watt

216
Q

A coil of wire with a core attached to an electrical source is called a(n) __________.

A. battery
B. electromagnet
C. magnet
D. generator

A

electromagnet

217
Q

A __________ is a material that can work as a conductor or as an insulator.

A. ROM
B. magnet
C. semiconductor
D. resistor

A

semiconductor

218
Q

Who discovered that moving a magnet around or through a loop of wire produces electricity in the wire? Select the two correct answers.

A. Joseph Henry
B. William Sturgeon
C. Hans Christian Oersted
D. Michael Faraday

A

A. Joseph Henry

D. Michael Faraday

219
Q

Who discovered that current traveling through a wire produces a weak magnetic field in the live wire?

A. Joseph Henry
B. William Sturgeon
C. Hans Christian Oersted
D. Michael Faraday

A

Hans Christian Oersted

220
Q

Who discovered that adding a metal core to a coil of wire increased the magnetism?

A. Joseph Henry
B. William Sturgeon
C. Hans Christian Oersted
D. Michael Faraday

A

William Sturgeon

221
Q

Which of the following statements is correct?

A. Both magnets and static electricity require a power source to work.
B. Both magnets and static electricity can attract and repel objects.

A

B. Both magnets and static electricity can attract and repel objects.

222
Q

Which of the following statements is correct?

A. The strength of an electromagnet can be affected by the size of the core or the number of coils around the core.
B. The strength of an electromagnet is determined only by the amount of electricity it receives.

A

A. The strength of an electromagnet can be affected by the size of the core or the number of coils around the core.

223
Q

Which of the following statements is correct?

A. A battery works as a result of a chemical reaction and the movement of electrons.
B. A battery works as a result of electricity flowing through wires wrapped around a core.

A

A. A battery works as a result of a chemical reaction and the movement of electrons.

224
Q

Which of the following statements is correct?

A. Both electronic devices and electrical devices communicate information.
B. Electronic devices can communicate information, but electrical devices cannot.

A

B. Electronic devices can communicate information, but electrical devices cannot.

HSG (12 decks)

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