- One of the more simple science projects to execute, a solar system model is an effective way to illustrate the planets' relative position to the sun. To create a model, use styrofoam balls or any colored balls to represent the planets and a large styrofoam square to use as the base. Color the balls with spray paint or regular acrylic paint. The largest ball, the sun, should be in the center of the model. Stick one end of a toothpick into the styrofoam and the other end into a styrofoam base. Arrange the planets around the sun, in their correct order. Write and cut out labels for each planet and glue them to the correct balls.
- The sun is the center of the solar system and powers Earth and the rest of the planets. Demonstrate how heat can effect the elasticity of material with this inexpensive experiment using three plastic, bouncy balls. Place all three balls in separate zipper-lock plastic bags. Put one ball in the freezer, immerse one in hot water and place the third at regular room temperature. Wait for about half an hour before testing the bounce of the balls. The hot ball will have the highest bounce, because heat expands the plastic and is able to store more energy.
- Learn about the various phases of Earth's moon with this creative science project, which documents Earth's 29.5-day cycle. Use photographs or illustrations of the moon in its different stages: first quarter, waxing gibbous, full moon, waning gibbous, third quarter, waning crescent, new moon and waxing crescent. Present these stages in a circular chart, where first quarter is at the top spot and third quarter is a the bottom position. Draw arrows showing a counterclockwise movement. Draw the sun to the right of the circle.
- Scientists have long wondered how Mars, the red planet, developed its color. One theory is that Mars has iron rust in its soil, which occurs when oxygen reacts with metal. Illustrate this process by making your own rust. Spread a thin layer of sand in a baking pan. Mix small pieces of steel wool into the sand and fill the pan with enough water to cover the mixture. Continue adding water daily, so that the sand remains wet. You will begin to notice the sand turning a red color.
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