The sun's rays can be used to fill up a battery so it heats buildings, creates electricity, and moves cars. Even if the sun goes behind a cloud, your car will keep you moving because it stores up energy. I guess we're not the only ones interested in solar power.

Sun Fun

When the sun (solar energy) hits some colors, it absorbs more energy than others; this means it gets warmer with some colors than others. Here's a fun activity to see if you can predict which color gets warmer.

• Put three thermometers in the sun.

• Cover the bulb of the first thermometer with black paper, the second with white paper, and leave the third uncovered.

• Predict which one will get the hottest.

• Wait five minutes.

• Look at the results. Did you predict correctly?