7th Grade Unit 1 Post Test Review

Which is an example of a physical property?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-4

What type of mixture has visible(can see) different parts?

• Solution
• Homogeneous mixture
• Heterogeneous mixture
• Pure substance

What type of mixture has visible(cannot see) different parts?

• Solution
• Homogeneous mixture
• Heterogeneous mixture
• Pure substance

What is the smallest unit of an element that maintains its properties?

• Molecules
• Compound
• Proton
• Atom

Tags

NGSS.MS-PS1-1

When water vapor condenses, what type of change occurs?

• Chemical change
• Nuclear change
• Physical change
• Molecular breakdown

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Which substance is an example of an compound?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-1

How many neutrons does this element have?

• 79
• 196.97
• 117.97
• 29

Tags

NGSS.MS-PS1-1

What is the atomic number of this element?

• 79
• 196.97
• 117.97
• 29

Tags

NGSS.MS-PS1-1

What is the number protons in this element?

• 22.990
• 2
• 22
• 11

Tags

NGSS.MS-PS1-1

What is the number electrons in this element?

• 22.990
• 2
• 22
• 11

Tags

NGSS.MS-PS1-1