Mixture Fun Facts

Multiple Choice

Why is the conservation of matter important in science?

• Because it helps us understand that matter cannot be created or destroyed, only changed

• Because it explains how energy is created

• Because it shows that matter disappears during a change

• Because it proves that all changes are reversible

Multiple Select

Which of the following are examples of mixtures?

• Fruit salad

• Jar of coins

• Lemonade

• Orange Juice

Multiple Choice

Which of the following best describes a mixture?

• A combination of two or more substances

• A single pure substance

• A chemical reaction between substances

• A substance that cannot be separated

Multiple Choice

What conclusion can you draw about the physical properties of a penny when it is added to a jar of coins?

• The penny maintains its physical properties

• The penny changes color

• The penny dissolves

• The penny becomes magnetic

Multiple Choice

Which of the following is an example of a heterogeneous mixture?

• Saltwater

• Vinegar

• Oil in water

• Sugar dissolved in water

Multiple Choice

When mixing oil and water, which substance will float on top due to its lower density?

• Oil

• Water

• Both will mix evenly

• Neither will float

Multiple Choice

Which of the following objects will float in water based on their relative density?

• Cork

• Wood

• Metal

• All of the above

Open Ended

Explain how the process of magnetic separation works to separate iron filings from gravel.

Multiple Choice

Which methods can be used to separate a mixture of sand and saltwater into its individual components?

• Filtration and evaporation

• Distillation and filtration

• Magnetic separation and distillation

• Evaporation and magnetic separation

Multiple Choice

Which of the following best describes a chemical change?

• A change that produces one or more new substances and may release energy

• A change in the shape, size, or state of the substance

• A process of mixing two substances

• A method of separating mixtures

Multiple Choice

What does the scientific rule of conservation of matter state?

• Matter is neither created nor destroyed during a change.

• Matter can be created during a change.

• Matter can be destroyed during a change.

• Matter changes into energy during a change.