Question

The Smurfs want to put insulation in their new mushroom house keep them warmer. Papa Smurf decided to determine which

insulation transferred the least heat. Smurfette filled each of 6 je
half-full with water. Brainy sealed each jar with a plastic lid and
then they wrapped each jar with a different kind of insulation.
Brainy insisted they leave one of the jars without any insulation a
all. They put the jars outside in the direct sunlight. Later, they
measured the temperature of the water in each jar.

Answer 1

1. It was a control variable

2. Type of insulation

3. Temperature

4. Plastic lids or Water or Half Full or Direct Sunlight