Georgia Milestone Science Review

You have just raked the yard. You want to jump in the leaf pile, but you do not want to get stuck with sharp sticks and twigs. What is the best way to separate twigs from leaves?

• Filtration

• Pick them out

• evaporation

• stir them

Which of the following is a heterogeneous (see all the parts) mixture?

• Iced Tea

• Lemonade

• Salad

• Coffee

Melting ice is a physical change, what is freezing water?

• a physical change

• a physical property

• evaporation

• a separated mixture

True or false a solution is a type of mixture

• True

• False

Which of the following probably alerted Tamare that a chemical change was taking place?

• The egg caught on fire

• The egg changed to a solid

• The egg gave off light

• The stove got cool

Which of the following will not always cause a chemical change?

• Baking

• Burning

• Wetting

• Frying

Which material would be the best choice for an electrical worker to use to protect his hands as he works?

• a Conductor

• an Insulator

• a metal

• water

A switch is inserted into a series circuit of Chrismas lights. During the night, the switch is left open. The lights will

• continue to burn

• be turned off

• become a parallel circuit

• burn brighter

Which of the following is not powered by electricity?

• a television

• a microwave

• a digital camera

• All of these are powered by electricity

What is the main difference between a bar magnet and an electromagnet?

• a bar magnet is not powered by an electrical current

• a bar magnet has no electromagnetic force

• a bar magnet can be de-magnitized

• an electromagnet cannot be turned off