Quizly Quiz

Fireworks Exploding are a ________ change.

• Physical Change
• Chemical Change

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Water boiling is a _______ change. 

• Physical Change 
• Chemical Change 

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4

Which of the following is a sign that a chemical reaction has occurred?

• change in shape
• melting
• formation of a gas
• dissolving

Tags

NGSS.MS-PS1-2

A mixture is the result of a physical change because...

• The parts can be separated
• A new substance is made
• There is a chemical reaction
• One part of the mixture disappears

What is the name of a single type of atom?

• cell
• proton
• element
• atom

Helium balloons rise on earth because

• helium is less dense than air
• helium is more dense than air
• helium is cooler than air
• helium is warmer than air

A student knows the mass of an object. What other variable does the student need to know to calculate the object's density?

• Color
• Weight
• Volume
• Length

Tags

CCSS.HSG.MG.A.2

Why do some substances float on water?

• they are warmer than water
• they are cooler than water
• they are more dense than water
• they are less dense than water

Which box has a higher density?  

• Box A
• Box B
• cannot be determined
• they are the same

Which of these is a property of metals?

• It's malleable
• It can't conduct electricity
• They are used in food
• It's very brittle