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Topics for Science Experiments for the Seventh Grade


    • Reveal the ability of a football helmet to absorb impact.Jupiterimages/Comstock/Getty Images

      In every classroom, there are plenty of boys and girls who might not be that interested in science. These students can make a compromise with their science project by introducing a topic that is sports-related and will maintain their interest in the project. For example, the star football player may do a project on how a football helmet is able to withstand physical impact. By showing charts and graphs with varying levels of impact as well as researching the protective materials in a helmet and the design, that "jock" student will have a fun and interesting topic. Another student may present a project showing the relationship between exercise, rest and blood pressure by conducting experiments on her body and sharing the results.


    • Reveal how different conditions affect the growth of a plant.Jupiterimages/ Images

      Agricultural experiments are interesting in both farming and in urban regions. Urban middle-schoolers who have never been exposed to the country may be intrigued by an agricultural experiment. One project is to experiment with different conditions to reveal how these conditions affect growth. These different conditions can include different levels of light, soil types and temperature. You can also use the same idea but use different fertilizers as the topic and discuss how this affects the growth of plants.


    • Do an experiment on the flavors of various juices.Martin Poole/Digital Vision/Getty Images

      Teenagers like to eat, especially growing seventh-graders. In almost every case, a seventh-grader will be interested in a science project having to do with food. Experiment with various types of food and observe mold growth on them. You can either have the live products right there or photograph them, charting how long it took to grow the mold. Alternately, provide various types of fruit juice for guests at the science fair. Blindfold them and have them take a sip of the juice and then guess what type of juice it is. Then provide information about taste buds and how our taste buds work to recognize flavors.

    Fun Stuff

    • Conduct a fun experiment on bubbles, such as why some pop quickly and others are so resilient..Todd Warnock/Lifesize/Getty Images

      There is no question that seventh-graders love to have fun. Find quirky experiments that kids will have a good time doing. Examine the properties of a bubble by creating a carbon dioxide mixture with vinegar and baking soda in a large container. Demonstrate blow bubbles over the top of a container and watch as the bubble enters without hitting the bottom and then examine changes that develop in the bubble. Learn how to make homemade plastic by mixing a combination of borax laundry detergent with glue and then explain the process. Explain what properties make up real plastic.

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