7.1

The three states of matter are:

• solid, gas, energy

• gas, liquid, solid

• plasma, liquid, energy

How many atoms of sodium are in this molecule?

• 3

• 6

• 5

• 0

Tags

NGSS.MS-PS1-1

Matter and energy can flow into and out of a/an...

• atom

• molecule

• closed system

• open system

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

When you combine citric acid, baking soda, and water...

• Atoms randomly change into different atoms

• Hydrochloric acid is released

• Argon gas is released

• the molecules rearrange into new substances

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

If a substance is less dense than water it will...

• float

• sink

• combine with water

When electricity was ran through water, what gasses were released?

• water vapor and oxygen

• hydrogen and sodium

• oxygen and hydrogen

• water vapor and hydrogen

Tags

NGSS.MS-PS1-2

When energy was added to water with heat, it created...

• Carbon dioxide bubbles

• oxygen gas

• hydrogen gas

• water vapor

Tags

NGSS.MS-PS1-4

Flammability is a ______ of a substance.

• good time

• property

• character

Tags

NGSS.MS-PS1-2

What is the force that every object exerts on all other objects because of their masses?

• friction

• mass

• weight

• gravity

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Which is the densest layer?

• Crust

• Mantle

• Outer core

• Inner core