Are you looking for some fun science experiments for 7th grade students? Science experiments are a great way to learn about the world around us. They can help us understand how things work and why things happen. With the right guidance and materials, 7th grade students can do some really cool science experiments. Here are 10 of our favorite science experiments for 7th grade students.

1. Make an Egg Float

This is a classic science experiment that will show students the power of density. First, fill a glass or bowl with water and then place an egg into the water. The egg will sink. Then, carefully add salt to the water and stir until the salt is dissolved. Place the egg back into the water and watch as it slowly starts to float. Explain to students that the salt water is denser than the egg, which is why it floats. For an additional challenge, you can ask the students to figure out the exact amount of salt needed to make the egg float.

2. Create a Volcano

This is a fun and easy science experiment for 7th grade students. You will need baking soda, vinegar, food coloring, a small cup, and a large cup. First, put the baking soda in the small cup. Then, pour the vinegar into the large cup. Add a few drops of food coloring to the vinegar for an added effect. Place the small cup into the large cup and then watch as the volcano erupts. Explain to students that the baking soda and vinegar combine to form a chemical reaction that causes the eruption.

3. Make a Lava Lamp

This is a fun and simple science experiment that will show students the power of density. You will need a clear plastic bottle, vegetable oil, water, food coloring, and Alka-Seltzer tablets. First, pour the vegetable oil into the plastic bottle. Then, add the water and a few drops of food coloring to the bottle. Carefully drop one Alka-Seltzer tablet into the bottle and watch as the lava lamp comes to life. Explain to students that the Alka-Seltzer tablet causes a chemical reaction that makes the oil and water separate.

4. Make a Cloud in a Jar

This is a cool science experiment that will show students the power of evaporation. You will need a large jar, a few drops of food coloring, warm water, and ice cubes. First, fill the jar with warm water and a few drops of food coloring. Then, place several ice cubes on top of the warm water. Wait a few minutes and watch as a cloud forms in the jar. Explain to students that the cold air from the ice cubes causes the warm air from the water to evaporate, creating a cloud.

5. Create a Lemon Battery

This is a fun and simple science experiment that will show students how electricity works. You will need a lemon, a few nails, a few paper clips, and a small light bulb. First, cut the lemon in half and then poke two nails into each half. Then, connect the two nails with a paper clip. Finally, connect one end of the paper clip to the light bulb and the other end to the other nail. Turn the light bulb on and watch as the lemon produces electricity. Explain to students that the lemon acts as an electrolyte, and the nails and paper clip act as electrodes to produce electricity.

6. Make a Hovercraft

This is a fun and simple science experiment that will show students the power of air pressure. You will need a balloon, a plastic cup, a plastic lid, and a few paper clips. First, attach the balloon to the plastic lid with a few paper clips. Then, cut the bottom off of the plastic cup and place the plastic lid on top of the cup. Place the cup on a flat surface and then blow up the balloon. Watch as the hovercraft moves across the surface. Explain to students that the air from the balloon creates a cushion of air, which is what causes the hovercraft to move.

7. Make a Solar Oven

This is a great science experiment that will show students the power of solar energy. You will need a cardboard box, aluminum foil, black construction paper, and a thermometer. First, line the inside of the cardboard box with aluminum foil and then cover the outside of the box with black construction paper. Finally, place a thermometer inside the box and then place it in direct sunlight. Wait a few minutes and watch as the temperature inside the box increases. Explain to students that the sun's rays are converted into heat energy, which is what causes the temperature to increase.

8. Make a Parachute

This is a fun and simple science experiment that will show students the power of air resistance. You will need a plastic bag, string, a few paper clips, and a toy car. First, tie the string to the plastic bag and then attach the paper clips to the string. Place the toy car inside the plastic bag and then drop it from a height. Watch as the parachute slows down the car's descent. Explain to students that the air resistance created by the parachute is what slows down the car's descent.

9. Make a Hovering Plate

This is a cool science experiment that will show students the power of air pressure. You will need a styrofoam plate, a straw, and a few rubber bands. First, cut the straw into small pieces and then attach the pieces to the styrofoam plate with rubber bands. Place the plate on a flat surface and then blow into the straw pieces. Watch as the plate starts to hover. Explain to students that the air pressure created by the straw pieces is what causes the plate to hover.

10. Make a Windmill

This is a fun and simple science experiment that will show students the power of wind energy. You will need a paper plate, a straw, and a few rubber bands. First, cut the straw into small pieces and then attach the pieces to the paper plate with rubber bands. Place the plate in a windy area and watch as the windmill starts to spin. Explain to students that the wind energy is what causes the windmill to spin.

These are just a few of the many fun and exciting science experiments for 7th grade students. With the right guidance and materials, 7th grade students can do some really cool science experiments that will help them learn about the world around them. So get out there and start exploring!