Where should you write down what happens during your test?

• Nowhere, just remember it
• In a table or chart
• On a different day

Before testing several materials, what should you keep the same each time?

• The way you test each material
• The color of each material
• The name of each material

After you finish testing materials, you sort them into groups based on your results.

Circle one:   True   False

You want to find out which of three cloths dries fastest. What is the best way to test this?

• Wet each cloth with the same amount of water and check them after the same amount of time
• Wet just one cloth and guess about the others
• Ask a friend which cloth looks driest

Sam tested 5 buttons to see if a magnet pulls them. Look at his chart. Which group has more buttons?

• Magnetic
• Both groups are the same size
• Not magnetic

Zoe tested 7 objects in water. Look at her chart. How many objects were classified as floats?

Answer: ______________

A class tested 8 materials to see if they bend or snap. They wrote results for only 6 materials in their chart. What should they do before sorting the materials into groups?

• Sort the materials without the missing data
• Throw away the chart and start a new investigation
• Go back and record the missing 2 results

Leo tested four rocks for magnetism. He used a strong magnet on two rocks and a weak magnet on the other two. What is wrong with his test?

• Rocks cannot be tested for magnetism
• He did not use the same magnet for every rock, so the test is not fair
• He tested too many rocks