Middle school is an exciting time to try new activities in STEM. From dropping an egg from varying heights to making a working model volcano, there are many DIY middle school science experiments to try at home. Here are just three:
Middle school science experiment #1: balloon rocket
To create a balloon rocket, you will need a balloon, a piece of string or thin rope that is at least 10 feet long, a plastic straw, and tape. You’ll also need two posts, which could be actual poles, doorknobs, sturdy chairs, etc. First, secure one end of the string to one post, and then insert the string through the straw. Tie the other end of the string to the other post, pulling it taut. Blow up the balloon, and secure the air inside by pinching it with your fingers or clamping it gently with a binder clip. Then, tape the straw to your balloon, making sure the balloon’s end is facing you. Let the balloon “fly” along the string, from one end to the other. For further experimentation, try varying the size and shape of the balloon, utilizing different types of string, or changing the angle of the string.
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Middle school science experiment #2: fruit battery
For this experiment, you’ll need a citrus fruit, a copper nail, a zinc nail, and a holiday light. For the holiday light, use wire strippers to cut one working light from a longer string, making sure to leave two inches of string on either side. Also be sure your copper and zinc nails are about two inches long. Since this experiment involves electrical work, make sure to have adult supervision.
Once you’ve gathered your materials, soften the fruit with your hands or by rolling it on the table. This will help the juices loosen up and allow the circuitry to flow better. Then, push the nails through the fruit skin at least two inches apart. Next, carefully cut the plastic coating from the light strands so you’re able to wrap the strand around each nail. The fruit will now begin acting like a battery and power the light. For future experimentation related to this project, explore different hypotheses, such as:
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Do different citrus fruits make a difference?
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What if you use a non-citrus fruit?
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Middle school science experiment #3: the milk trick
Gather a flat tray, food coloring, whole milk, and liquid dish soap. For best results, use three or more colors of food coloring. First, you’ll want to pour some milk onto the tray, just enough to cover the bottom. Next, add several drops of different food coloring into the milk; you can do this in different spots of the milk, or drop your different colors next to each other. Then, add a few drops of dish soap directly onto the food coloring, and watch as the milk reacts with the dish soap. If you’d like to extend this project, try different types of dish soap and record your results.
Some middle school science experiments can be done within the span of an afternoon, while others might take up to a week to execute. Find a safe place to store your project and notes, and if you’re curious, check out videos online to see how others experienced the same experiment. Lastly, don’t forget to share your findings with friends and teachers!
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