SCIENCE MIDTERM REVIEW

To be absorbed by a liquid when mixed

• dissolve
• mixture

S........................................: A liquid that dissolves a solid.

s........................................: A mixture when something dissolves in water.

R........................................: A process that mixes chemicals to make new chemicals.

........................................: Be able to change back to what it was before.

........................................: A solid that dissolves in water.

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.................................................: Be impossible to change back to what it was before.

Circle the correct answer. a. Why is plastic used to make water bottles?

• Because plastic is a good thermal conductor.

• Because plastic is soft and flexible.

• Because plastic is waterproof and light.

Which of the following materials is used to make a T-shirt?

• Metal

• Fabric

• Glass

Circle the correct answer. c. Which of the following is an irreversible change?

• Mixing

• Freezing

• Digestion