G6 - Safety

What does "purify" mean?

• To mix

• To clean and remove impurities

• To spill

• To freeze

What is a "filter" used for?

• To add dirt

• To separate clean water from impurities

• To boil water

• To freeze water

What does "contaminated" mean?

• Clean

• Dirty or polluted

• Cold

• Hot

What is "charcoal" used for in water purification?

• To make it colorful

• To remove odors and chemicals

• To add sugar

• To freeze it

What is "gravel" used for in a water filter?

• To make it sweet

• To filter out larger particles

• To add bubbles

• To make it hot

What is "dirt"?

• Clean sand

• Impurities in water

• Pure water

• Ice

Why is it important to "purify" water?

• To make it taste bad

• To make it safe to drink

• To make it colorful

• To make it hot

What is the first step in a water purification experiment?

• Drinking the water

• Collecting "contaminated" water

• Freezing the water

• Boiling the water

What material acts as a "filter" in our experiment?

• Sugar

• Sand, "gravel," and "charcoal"

• Salt

• Juice

What happens to "dirt" and other impurities during filtration?

• They disappear

• They turn into sugar

• They boil away

• They get trapped in the filter