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What is matter?

• everything that has mass and occupies space

• something important

• only things that are heavy.

The water weighed 150 grams. The sugar weighed 25 grams. Why did they weigh 175 grams after the sugar dissolved?

• The sugar had disappeared.

• The sugar was still there. It was in a different form.

• The water was heavier.

True or False:

When water changes from solid to liquid state, some of the matter is destroyed

• True

• False

50 grams of salt are dissolved in 300 grams of water.

What is the mass of the saline solution?

• 250 grams

• 300 grams

• 50 grams

• 350 grams

100 grams of ice melt.

What is the mass of the melted ice?

• 75 grams

• 50 grams

• 100 grams

• 150 grams

True or False:

When ice changes to water, it transforms into a different type of matter.

• True

• False

A combination of 2 or more substances that can be easily separated is called-

• a mixture

• a solution

• a solute

• a solvent

A combination of two or more substances that cannot easily be separated--

• mixture
• solution
• solute
• solvent

Which of the following is a method of separating solutions?

• hand seperation
• filtering
• screening
• evaporation 

If you spilled nails in a sandbox, what separation tool/method could you use to clean out the sandbox so it would be safe for children to play in?

• Filter
• Screen
• Magnet
• Evaporation