Unit 1 Matter and Energy

Burning wood to ash is an example of a:

• Physical change
• Chemical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is not evidence that a chemical reaction has occurred?

• Sound is given off

• Gas bubbles escape

• The shape of the object changes

• The temperature changes

Tags

NGSS.MS-PS1-2

Which state of matter has the highest amount of kinetic energy?

• solid

• liquid

• gas

Tags

NGSS.MS-PS3-4

A sample of a substance has a mass of 7.3 g and a volume of 2.8 cm³. What is the objects density?

• 2.61 g/cm³
• 10.1 g/cm³
• 0.38 g/cm³
• 20.44 g/cm³

How many chlorine (Cl) atoms are in CaCl₂?

• 2

• 4

• 1

• 3

Tags

NGSS.MS-PS1-1

How many oxygen (0) atoms are in Al(NO₃)₃?

• 13

• 9

• 15

• 6

Tags

NGSS.MS-PS1-1

Which of the following terms identifies the change from a liquid to gas?

• Vaporization
• Condensation
• Deposition
• Sublimation

Tags

NGSS.MS-PS1-4

When heat is added/absorbed, the temperature of matter increases and the particles...

• speed up and move closer

• speed up and move farther apart

• slow down and move closer together

• slow down and move farther apart

Tags

NGSS.MS-PS1-4

State of matter that has no definite shape and no definite volume

• Gas

• Liquid

• Solid

State of matter that has a definite shape and a definite volume.

• Gas

• Liquid

• Solid