Chemistry Unit 1 Review

Anything that has mass or volume is called (a)   .

• matter
• mass
• freezing
• liquid
• chemical

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5

​ ​ (a)   is an example of a physical change.

• Mass
• Matter
• Liquid
• Chemical
• Freezing

Tags

NGSS.MS-PS1-4

In the scientific method, (a)   is the step in which experimental results are used to decide the validity of each hypothesis.

• analysis
• hypothesis
• observation
• data collection

Tags

NGSS.MS-PS1-2

Identify each of the following as an element, heterogeneous mixture, compound, or homogeneous mixture.

Groups:

(a) Element

,

(b) Heterogeneous Mixture

,

(c) Compound

,

(d) Homogenous Mixture

• Helium

• Fruity Pebbles Cereal

• Ammonia
• Sodium Chloride
• Water
• Sand

• Salad

• Oxygen
• Lemonade

• Taco

• Soda

• Neon

• Coffee

• Nitrogen

• Carbon Dioxide
• Trail Mix

Tags

NGSS.MS-PS1-1

Select the correct amount of significant figures for the number below:

2040

• 1

• 2

• 3

• 4

Select the correct amount of significant figures for the number below:

300,000

• 1

• 2

• 3

• 4

Select the correct amount of significant figures for the number below:

0.0000000008

• 1

• 2

• 3

• 4

Select the correct amount of significant figures for the number below:

0.009700

• 1

• 2

• 3

• 4

Select the correct amount of significant figures for the number below:

500,000.0

• 1

• 2

• 6

• 7

Select to correct answer for the equation below:

8.888 x 3.29853

• 29.32

• 30

• 29

• 29.0