Online Science-athon/Marble Roll
Step 4: Design, Build, and Test Collectors
How much can you make the air temperature inside a solar collector go up?

 
1. 

Select a marble you like and a material to use as a ramp. Then, try a couple of trial rolls.
 
2. 

Think about the science in the Marble Roll.
 
3. 

Keep the rules for Marble Roll Day in mind as you work.
 
4.  Try some of these things.
 

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