Exploring the World of Science
Science is an exciting subject for students of all ages. It involves exploring the unknown and discovering new things. Junior high school students can have a lot of fun with science experiments, while at the same time learning important concepts. There are many science experiments that are suitable for junior high school students. Here are some ideas for science experiments that junior high school students can try.
The Bernoulli Effect Experiment
The Bernoulli effect is a phenomenon in which a fluid flows faster over a surface that has less friction. To demonstrate this effect, you will need a flat sheet of paper, a ruler, and a fan. Place the sheet of paper on the ruler, and turn on the fan. The paper should move up and down, depending on how much friction is present. This demonstrates how the Bernoulli effect works.
Floating Egg Experiment
This experiment will show how density works. You will need a glass, a raw egg, water, and salt. Fill the glass with water. Carefully lower the egg into the glass. It should sink to the bottom. Now, add enough salt to the water to make it denser than the egg. The egg should float to the top of the glass. This experiment will help students understand how density affects objects.
The Candle in a Jar Experiment
This experiment will demonstrate how air pressure works. You will need a sealed glass jar, a candle, and a match. Light the candle, and place it in the jar. Seal the jar tightly. The candle will soon go out, as the air pressure inside the jar is greater than the air pressure outside the jar. This experiment will help students understand how air pressure works.
The Balloon Rocket Experiment
This experiment will show how air pressure works. You will need a balloon, a straw, and a string. Tie one end of the string to a chair, and the other end to the straw. Blow up the balloon and attach it to the straw. Let go of the balloon, and it should move along the string. This experiment will help students understand how air pressure works.
The Paper Clip Experiment
This experiment will demonstrate how static electricity works. You will need a paper clip, a piece of string, and a balloon. Tie one end of the string to the paper clip, and the other end to the balloon. Rub the balloon against your hair to create static electricity. Hold the paper clip near the balloon, and the paper clip should be attracted to the balloon. This experiment will help students understand how static electricity works.
The Bouncing Egg Experiment
This experiment will demonstrate how osmosis works. You will need a raw egg, vinegar, and a bowl. Place the egg in the bowl and pour the vinegar over it. The egg should start to bubble and foam. After a few days, remove the egg from the bowl. The egg should be rubbery and bouncy. This experiment will help students understand how osmosis works.
The Water Displacement Experiment
This experiment will demonstrate how buoyancy works. You will need a container, water, and an object. Fill the container with water, and lower the object into it. The object should displace the water, and the amount of water displaced should be equal to the weight of the object. This experiment will help students understand how buoyancy works.
The Plant Growth Experiment
This experiment will demonstrate how plants grow. You will need three plants, three pots, and some soil. Place a plant in each pot, and water them. Place the pots in different locations, such as in direct sunlight, in indirect sunlight, and in the shade. Monitor the plants over a period of time, and observe how they grow. This experiment will help students understand how plants grow.
Conclusion
Science experiments are a great way for junior high school students to explore the fascinating world of science. There are many experiments that are suitable for junior high school students, such as the Bernoulli effect experiment, the floating egg experiment, the candle in a jar experiment, the balloon rocket experiment, the paper clip experiment, the bouncing egg experiment, the water displacement experiment, and the plant growth experiment. By performing these experiments, students can gain a better understanding of science concepts.