7th Grade Science Fair Projects

Science fair projects at 7th grade become a bit more challenging than the earlier grades. One has to be more creative while making science fair projects at this level. The winning 7th grade science fair projects could be any project that offers something interesting and presents fundamental concepts of science in an easy to understand manner.

Science Fair Projects for 7th Grade Students

Few of the interesting and easy-to-do projects are presented in the following paragraphs. 7th grade science projects provided below would prove to be helpful for students who are still confused about what they can make for their science fair.

Volcano Model
A working model of a volcano is one of the easy science fair projects. The materials needed for this project include a wooden plank, which serves as a base for the volcano, baking powder (1 tbsp), dish washing powder (1 tbsp), vinegar (¼ cup) and red food color. A model of the volcano can be prepared by using the paper mache technique. Once the model is ready, the mixture of baking powder, dish washing powder and red food color should be poured into the hollow space of the volcano. Demonstration of the active volcano is carried out by adding vinegar to the mixture.

Bridges
The idea behind the project of bridges is to test the various bridge forms on the basis of parameters like weight bearing capacity. One can experiment with different types of bonding agents and materials while making these bridges. Children can learn a lot about properties of different materials through this experiment.

Studying Photosynthesis
A biology project to study the phenomenon of photosynthesis, is also one of the good science projects. In this project, one should try to make observations about the growth of plants in differing light conditions. The same variety of plants should be grown in different rooms where they get varying amounts of light. The differences in growth of these can be documented and presented during the science fair.

Bottle Electricity
For this project the tools required are a pair of scissors and glue stick. An aluminum film canister foil (35 mm), sticky tape and a wire are the other materials needed. A tool for stripping the wire insulation is also required. The directions for this project are simple to understand and one shouldn't face any problems, if the step-by-step procedure is followed.

• The aluminum foil should be cut into a rectangular shape and lined inside the canister with the help of glue. Edges of the foil should be smooth; it prevents the charge from leaking.
• The lid of the canister should be pierced with something sharp. The purpose is to make a hole that is large enough for a wire to be threaded.
• The wire (7 - 8 cm in length) to be passed through this hole should be stripped at both the ends. The wire end which is slid inside the canister should be taped to the foil.
• Insulation should also be scraped off at the length where it (wire) just pokes out of the canister. This very stripped portion helps in the creation of a discharge loop.
• Next step in the process is to tape another aluminum foil to the canister from outside. A wire (4 - 5 cm) should be taped to this foil. One end of the wire remains attached to the foil and the other end meets the discharge loop; this end however, shouldn't be connected to the discharge loop.
• One shouldn't go for expensive options like the Wimshurst machine or generators for electricity. Small amount of charge can be generated even by rubbing the longer wire with woolen fabrics or rubber materials (balloons).

The simple science fair projects for school kids given in the article above should serve the purpose. However, one should also try to experiment with as many different ideas as possible.