Sem B Unit 4 Test Review

I understand that the Unit 4 Test will be in a google form located near the top of my science gradebook and that I will have one attempt on the test

• 
• 
• 
• 

Which indicates that a chemical reaction or chemical change has taken place?

• melting ice

• Heat is given off.

• Substance dissolves

• Substance changes shape.

Tags

NGSS.MS-PS1-2

Wood being burned is a __________ change; cutting wood so that it ends up in two pieces is a ___________ change.

• chemical; physical

• physical; chemical

• chemical; chemical

• physical; physical

Why are trees and cotton considered renewable natural resources?

• Trees and cotton are not found in the ground.

• As they are used, they can be replanted.

• They are not used as fuels like the others.

• Trees and cotton can not be recycled.

Tags

NGSS.MS-LS1-5

My all time favorite is:

• summer solstice

• vernal equinox

• autumnal equinox

• winter solstice

Tags

NGSS.MS-ESS1-1

In an experiment, the variable that is measured in the results is called the

• dependent variable.

• independent variable.

• constant or controlled variable.

• hypothesis.

Which is an example of an element?

• gold (Au)

• chex mix

• electron (e−)

• water (H20)

My favorite mammal is:

• 
• 
• 
• 
• something else

Tags

NGSS.MS-LS1-1

One difference between mixtures and pure substances is that

• mixtures are made of one type of atom.

• pure substances have no chemical bonds.

• pure substances cannot be easily separated

• mixtures can be easily separated.

Matthew decides to make some fruit punch. He dissolves a packet of the koolaid mix into a pitcher of water. Which of these best describes what occurred?

• chemical chang

• physical change

• nuclear change