Chemistry 6th grade

Question 1

What does the word matter mean in science ?

Answer 1

Matter is anything that has mass and takes up space. Everything has matter in it.

Question 2

What is an element

Answer 2

A pure substance made up of subatomic particles. There are 118 elements in the periodic table.

Question 3

How are elements represented on periodic table?

Answer 3

Elements are represented using a element symbol/chemical symbol. CAPITAL LETTERS
C- carbon

Question 4

How are elements arranged on periodic table ?

Answer 4

groups and periods. Groups show valence electrons thy go ⬇️. Periods show #of electron shells and go ➡️. Increase by atomic #

Question 5

Where are metals on periodic table ?

Answer 5

Left of zigzag line

Question 6

Where is nonmetals on periodic table ?

Answer 6

Right of zigzag line, all noble gases

Question 7

Where are metalloids located on the periodic table?

Answer 7

Found on zigzag line.

Question 8

Properties of metals ?

Answer 8

Malleable, Ductile and Good Conductors of Heat and Electricity. Shiny Luster, Solid,High Melting Point.

Question 9

properties of nonmetals?

Answer 9

dull, brittle, poor conductors of electricity and heat. Solid, liquid and gas.

Question 10

Electrons …..

Answer 10

Located in the electron cloud, negative charge.

Question 11

properties of metalloids?

Answer 11

have properties of both metals and nonmetals

Question 12

3 parts of atom are ….

Answer 12

• proton
• Neutron
• Electron

Question 13

Neutrons …..

Answer 13

Found in nucleus, neutral charge.

Question 14

Protons…..

Answer 14

Found in nucleus, positive charge

Question 15

H2O has?

Answer 15

2 helium elements

one oxygen element

Question 16

groups tell you

Answer 16

number of valence electrons

Question 17

periods tell you

Answer 17

How many electron shells there are, 7 periods

Question 18

Density formula

Answer 18

Density = mass/volume

Question 19

physical property of matter

Answer 19

can include a substance’s color, hardness, density, mass, or volume, taste, mealting
*can be observed without changing the substance’s identity

Question 20

Chemical Properties of Matter

Answer 20

the ability of a substance to combine with or change into one or more substances; the inability of a substance to change into another substance. Rusting, toxicity etc

Question 21

physical change examples

Answer 21

cutting string, crumpling paper, melting ice, evaporating water

Question 22

chemical change examples

Answer 22

rusting, burning something, spoiled food or baking/cooking

Question 23

Chemical changes signs

Answer 23

1. Light given off
2. Temperature change
3. Color change
4. Gas released/bubbles
5. Percipetant

Question 24

What is an element?

Answer 24

a Substance that contains only ONE type of atom.

Question 25

What is a compound?

Answer 25

2 or more elements chemically combined

Question 26

What is a mixture?

Answer 26

A combination of two or more substances that are not chemically combined

Question 27

3 main states of matter

Answer 27

solid, liquid, gas

Question 28

cross-contamination

Answer 28

the spreading of bacteria or other pathogens from one food to another. Think chemicals in lab.

Question 29

Physical lab…

Answer 29

Sorting cereal
melting ice
shaping play dough
cutting paper
smoothing rocks
mixing koolaid

Question 30

Chemical lab…

Answer 30

Cooking pancakes
rusting nail
rotting apple
milk + vinger
Baking soda + vinger
activaitng glowstick'
hand warmers