Teach students about evaporation with a fun science experiment. Fill two clear containers with water. Add salt to one of the glasses. Ask a student to taste the water and describe what he tastes. Place a piece of masking tape at the top of the water line on each glass and write the date with a marker. Each day, ask students to check the glass to see if the water level has changed. Mark any changes with tape. Once the water has evaporated, the glass containing salt water will still have salt at the bottom of the glass, while the glass containing water will be empty.
Use a science experiment to demonstrate how plants grow. Fill two small pots with potting soil. Plant a few small seeds in each pot, and label the pots. Place one of the pots in the sunlight and water it. Place the other pot in a dark space and do not water it. Ask students to predict what will happen to each plant. Once the plant given water and sunlight begins to grow, explain to students that plants need water and sunlight to grow. Observe how the plant without water and sunlight becomes dry and does not grow.
Teach students about the power of the sun with an experiment. Provide a piece of dark paper for each student. Prepare a basket filled with small objects like pencils, toys, plastic shapes or blocks. Ask students to set their pieces of paper in a sunny place and lay a few objects from the basket on top of each of them. Check on the paper throughout the day. At the end of the day, the paper will be faded but the objects left on the paper will leave dark patterns. Ask the students why this happened. Try the experiment again on a cloudy day and ask students to predict what will happen.
Explore colors with an art experiment. Give students different colors of finger paints, including yellow, blue, red, yellow and white. Provide students with plenty of white paper. Ask students to mix the yellow and red paint together to make orange. Next, ask students to mix red with white to make pink. Have students guess the color made with blue and red. Provide more colors and invite students to experiment on their own.