Changes to Matter - STEMSCOPES

What is the law of conservation of matter?

• Matter can be created or destroyed.

• Matter cannot be created or destroyed, only changed.

• Matter disappears when heated.

• Matter is only found in solids.

Tags

NGSS.MS-PS1-5

Which tool would you use to measure the weight of a substance in a science experiment?

• Ruler

• Thermometer

• Balance scale

• Stopwatch

What happens to the total weight of water when it freezes into ice?

• It increases

• It decreases

• It stays the same

• It disappears

If you mix 50 grams of sugar with 100 grams of water, what is the total weight of the mixture?

• 50 grams

• 100 grams

• 150 grams

• 200 grams

Which of the following is an example of a physical change?

• Burning wood

• Melting ice

• Rusting iron

• Baking a cake

A student heats 200 grams of water until it boils. What should the student expect the total weight of the water and steam to be?

• 0 grams

• 100 grams

• 200 grams

• 400 grams

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5

If you mix 30 grams of salt with 70 grams of water and nothing spills, what is the total weight of the solution?

• 30 grams

• 70 grams

• 100 grams

• 40 grams

Which graph would best show the change in weight before and after mixing two substances?

• Line graph

• Bar graph

• Pie chart

• Scatter plot

Tags

NGSS.MS-PS1-2

A student measures the weight of a piece of chocolate before and after melting it. What should the student notice about the weight?

• It increases

• It decreases

• It stays the same

• It disappears

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following best describes what happens to the total weight when two substances are mixed in a closed container?

• The total weight increases

• The total weight decreases

• The total weight stays the same

• The total weight doubles

Tags

NGSS.MS-PS1-5