Your Guide to Science Fair Topics, Ideas, Experiments, and Winning Displays
What Happens When A Substance Gains or Loses Energy? For this article, heat will be the energy source and water molecules the substance gaining or losing energy. So, what happens when water molecules gain or lose energy? Energy is needed for motion, the more energy a substance has the faster is its motion. [...]
Passive Solar Heating VS. Active Solar Heating Solar energy is radiant energy from the Sun. This energy travels through space to Earth in the form of electromagnetic waves. In an hour, the Sun sends to the earth’s surface as much or more energy as people use to run factories, machines, and vehicles and to heat [...]
ABOUT ME: Hi, I am Janice VanCleave, author of 50 best-selling science experiment books for children ages 4 through high school. I taught science for 27 years.
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