Julia wants to find out which color fabric will heat up the fastest when put under a direct light. So, she places pieces of red, white, and green fabrics outside in the sunlight. Then, she places pieces

Julia wants to find out which color fabric will heat up the fastest when put under a direct light.

So, she places pieces of red, white, and green fabrics outside in the sunlight. Then, she places pieces of black, yellow, and blue fabric inside under a bright lamp. Finally, she measures the temperature of all the fabric samples every 5 minutes.

Will Julia's results be valid?

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Julia wants to find out which color fabric will heat up the fastest when put under a direct light. So, she places pieces of red, white, and green fabrics outside in the sunlight…

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