Review for 1st quarter science benchmark

What must happen to a liquid before it can become a gas?

• energy must be added to the liquid

• mass must be added to the liquid

• energy must be removed from the liquid

• the mass of the liquid must decrease

Answer explanation

when you add heat to a substance the molecules begin to speed up and move faster thus the substance changes from one state to another. If you remove heat the molecules slow down and get closer together.

Tags

NGSS.MS-PS1-4

This picture shows a puddle of water on the road. What is happening to the water on the road?

• as heat is added the puddle of water will melt

• as heat is added the water will freeze

• as heat is removed the water will condense

• as heat is added the water will evaporate

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

How much space an object takes up is called its________.

• size

• density

• mass

• volume

When energy is added to molecules they will move _________

• slower

• faster

• stay the same

Tags

NGSS.MS-PS1-4

A student poured five different clear, colorless liquids into five different beakers. Each beaker was half-filled with the liquid. The student added 1 gram of a white powder and stirred each mixture. The student’s observations are recorded in the data table.  In which three mixtures was a new substance formed?

• mixtures 1, 2, 6

• mixtures 2, 3, 4

• mixtures 3, 5, 6

• mixtures 4,5,6

Tags

NGSS.MS-PS1-2

Students completed four investigations where they combined two different substances. 

Which investigation shows evidence that the chemical properties of the substances changed? 

• Sand sinks in water when water and sand are combined.

• Salt dissolves in water when salt and water are combined. 

• Bubbles form when baking soda and vinegar are combined. 

• Vegetable oil coats the surface of lettuce when oil and lettuce are combined. 

Tags

NGSS.MS-PS1-2

Which piece of evidence supports the conservation of matter during the changes shown in the diagram? 

• The combined mass of the glass and its contents is the same before and after the ice melts. 

• The contents of the glass are colorless before and after the ice melts.

• The combined mass of the glass and its contents is less after the ice melts.

• The contents of the glass are wet before and after the ice melts. 

Tags

NGSS.5-PS1-2

A block of ice has a mass of 90 g, and its volume is 100 ml. Which statement is true of the block's mass and volume after the ice melts?

• Both the mass and the volume will change

• Both the mass and the volume will not change

• Only the mass will change

• Only the volume will change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Lilly lets her ice melt to water in a closed cup. She weighed it before and after the ice melted. Which of the following is correct about the weight?

• The ice weighed more before it melted. 

• The ice weighed less before it melted. 

• The ice melted and gained weight as it melted. 

• The ice weighed the same before and after it melted. 

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The temperature outside increases from 70°F to 88 degrees in the afternoon. How will this affect the rate at which water will evaporate into the atmosphere? 

• The evaporation rate will increase.

• The evaporation rate will decrease.

• The evaporation rate will remain the same. 

• The evaporation rate will increase and then decrease as the temperature increases. 

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4