Unit 1 Science Review: Matter: Interactions and Water Cycle

What is the total weight of a mixture if you combine 100 grams of sand with 50 grams of salt?

• 100 grams

• 150 grams

• 50 grams

• 200 grams

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

• Flammability

• Color

• Reactivity with acid

• Ability to rust

If you mix oil and water, what will happen to their physical properties?

• They will change

• They will remain the same

• They will form a new substance

• They will dissolve completely

Which of the following is a conductor of electricity?

• Rubber

• Copper

• Plastic

• Wood

What happens to the weight of a closed system when a chemical reaction occurs inside it?

• It increases

• It decreases

• It stays the same

• It vanishes

Tags

NGSS.MS-PS1-5

How can you identify a substance based on its properties?

• By its color and shape

• By its weight and volume

• By its melting point and boiling point

• By its size and texture

What evidence is there that matter is conserved when sugar dissolves in water?

• The sugar disappears

• The water changes color

• The total weight remains the same

• The water evaporates

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following scenarios would result in the formation of a new substance?

• Mixing sand and salt

• Dissolving sugar in water

• Mixing baking soda and vinegar

• Adding food coloring to water

Tags

NGSS.MS-PS1-2

If you dissolve 10 grams of sugar into a glass of unsweet tea that originally weighed 411 grams, what will be the new weight of the drink?

• 401 grams

• 411 grams

• 421 grams

• 431 grams

Tags

NGSS.MS-PS1-5

How do you know that mixing baking soda and vinegar causes the formation of a new substance?

• The mixture changes color

• The mixture becomes cold

• A gas is formed

• The mixture becomes sticky

Tags

NGSS.MS-PS1-2