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3rd Grade Science > Chapters 4-6 > Flashcards

Chapters 4-6 Flashcards

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Biology 101 flashcards
1
Q

What are animals without backbones called?

A

Invertebrates

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2
Q

What are invertebrates?

A

animals without backbones

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3
Q

In what five ways are invertebrates alike?

A
  1. They have no backbone.
  2. They usually have weak muscles.
  3. They usually are small animals with soft bodies.
  4. If they do have skeletons, the skeletons are on the outside of their bodies for strength and protection.
  5. They are cold-blooded.
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4
Q

Where are the skeletons of an invertebrate, if they have one?

A

the outside of their body

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5
Q

Are invertebrates warm-blooded or cold-blooded?

A

cold-blooded

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6
Q

What happens to an invertebrate if the temperature becomes too hot or too cold?

A

it dies

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7
Q

Do invertebrate move fast or slow on cold days?

A

slow

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8
Q

Do invertebrates move fast or slow on hot days?

A

fast

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9
Q

What do invertebrates feel with?

A

little hairs on their legs or feet

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10
Q

What are the sharp little projections on the side of an earthworm called?

A

setae

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11
Q

What are the arm on an octopus called?

A

tentacles

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12
Q

What does camouflage mean?

A

to change colors to match surroundings

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13
Q

What is the special tube that an octopus squeezes water through?

A

siphon

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14
Q

How many arms does an octopus have?

A

8

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15
Q

What are the special feet that starfish walk on called?

A

tube feet

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16
Q

Why do fisherman dislike starfish?

A

starfish eat clams and oysters

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17
Q

What happens if a starfish loses an arm?

A

it grows back

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18
Q

Which part of the insect contains its brain, antennae, eyes, and mouth parts?

A

head

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19
Q

Which part of the insect is the “motor room”

A

thorax

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20
Q

Which part of the insect contains the heart and stomach?

A

abdomen

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21
Q

What are the tiny holes along the side of an insects abdomen called?

A

spiracles

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22
Q

What are the four stages of complete metamorphosis for an insect?

A
  1. egg
  2. larva
  3. pupa
  4. adult
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23
Q

What does the insect use its spiracles for?

A

breath

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24
Q

What is a compound eye?

A

thousands of eyes fitted closely together to make one eye.

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25
Q

What is another name for an insect’s feelers?

A

antennae

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26
Q

What are the insect’s main sense organ?

A

antennae

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27
Q

How do insects taste food?

A

with their feet

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28
Q

Can all insects hear?

A

no

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29
Q

Name several helpful insects

A

bees, ladybugs, praying mantis

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30
Q

How are bees helpful?

A

they pollinate fruit trees and flowers

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31
Q

to cause to look like surroundings for protection

A

camouflage

32
Q

to look very much like something else

A

mimcry

33
Q

young spiders

A

spiderlings

34
Q

the wind catches the thread a spiderling is attached to and carries the spider away

A

ballooning

35
Q

Why is the twig caterpillar a good example of camouflage?

A

it looks like a twig

36
Q

How many legs do spiders have?

A

8

37
Q

What is mimicry

A

to look very much like someone else

38
Q

How does a kangaroo rat get water?

A

eats dry seeds and uses the little bit of moisture found in the seeds

39
Q

How does a jack rabbit get water?

A

licks the dew off the plants in the early morning and evening

40
Q

How does the desert tortoise get water?

A

He eats cactus and other plants that store water

41
Q

How often does it usually rain in the desert?

A

once or twice a year

42
Q

How do plants get water in the desert?

A

When it rains the roots quickly drink up a much water as it can and stores it for a long time.

43
Q

What do thorns and stickers do for desert plants?

A

Help keep the water in

44
Q

What are three things to remember about life in the desert?

A
  1. Both plants and animals have special ways of getting water.
  2. They have special ways of storing water.
  3. Desert animals have special homes to keep them cool during the day.
45
Q

Where do birds make their nests?

A

cactus plants

46
Q

where do some snakes including the desert rattlesnake live?

A

crevices of rocks

47
Q

the study of the ocean

A

oceanography

48
Q

scientists who study the ocean

A

oceanographers

49
Q

to look carefully

A

observe

50
Q

a test or trial

A

experiment

51
Q

substances from the earth that are made up of material that was never alive

A

minerals

52
Q

to break into tiny pieces and become part of a liquid

A

dissolve

53
Q

the tiny floating plants and animals of the sea

A

plankton

54
Q

one kind of plankton that is made up of tiny green plants

A

algae

55
Q

a series of plants and animals, each depending upon the next member in the series for food.

A

food chain

56
Q

What does every food chain begin with?

A

a green plant

57
Q

underwater radar

A

sonar

58
Q

an island built by tiny invertebrates

A

coral reef

59
Q

matter that settles to the bottom of a liquid

A

sediment

60
Q

What are 3 things to remember about the ocean?

A
  1. There is almost three times as much water as their is land.
  2. Without water, there would be no life.
  3. Scientist who study the ocean are called oceanographers
61
Q

What kind of minerals would you expect to find in the ocean?

A

any mineral found on land

salt, calcium

62
Q

What are rocks made up of?

A

minerals

63
Q

Why is the ocean becoming saltier?

A

As rivers flow towards the ocean, their waters pass swiftly over rocks and soil. The minerals in the rocks and soil very slowly dissolve.

64
Q

What does dissolve mean?

A

to break into tiny pieces and become part of a liquid

65
Q

What does a baleen whale depend upon for food?

A

plankton

66
Q

What are plankton

A

tiny floating plants and animals of the sea

67
Q

Where do Ospreys fall in their food chain?

A

at the end

68
Q

What are the rocky little hollows along the shore of a sea called?

A

tide pools

69
Q

Why is the ocean salty?

A

God made it that way

70
Q

Name a mammal of the sea

A

whale

71
Q

Name two invertebrate of the sea

A

squid, octopus, jellyfish

72
Q

What equipment helps scientist map the ocean floor?

A

sonar equipment

73
Q

What island was formed by a volcano?

A

Surtsey Island

74
Q

What animals build islands?

A

corals

75
Q

What covers the sea floor in many places?

A

sediment

3rd Grade Science (9 decks)

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