Chemistry

When ypu put water in the freezer and it becomes a solid, it goes through which process

• Condensation

• Evaporation

• Freezing

• Melting

Tags

NGSS.MS-PS1-4

Which is an example of a solid?

• juice

• pencil

• air in a balloon

Tags

NGSS.5-PS1-3

Which is an example of a gas?

• car

• water

• carbon dioxide

In which form of matter do the atoms freely move around?

• solid

• liquid

• gas

When some solids are heated, such as ice, it becomes what kind of matter?

• solid

• liquid

• gas

Tags

NGSS.MS-PS1-4

Which is an example of a liquid?

• table

• milk

• helium

Tags

NGSS.MS-PS1-4

How many atoms of sodium (Na) are in one molecule of baking soda?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

What is the chemical symbol for carbon?

• C

• Ca

• Cn

• Crn

If there is a rise in temperature during a chemical reaction it is called a _________________ reaction.

• endothermic

• exothermic

Tags

NGSS.HS-PS1-4

NGSS.HS-PS1-5

Ozone and Oxygen molecules are the same substance because they both are made only of oxygen atoms.

• true

• false

Tags

NGSS.MS-PS1-1