Science fair projects help students expand their understanding of various areas of science while offering them the chance to enter their investigations in school fairs and competitions.
Instead of the same-old baking soda and vinegar volcano, or potato battery experiment, encourage students to explore scientific questions that spark their imaginations. By running these experiments they will learn how to turn their personal interests into testable projects.
1. Plant Growth Under Different Lighting Conditions
Science fair project ideas for 7th grade can include collecting data, creating charts and graphs, writing up results, or simply finding something interesting that challenges them academically. But the key component is identifying an idea that resonates with your student while pushing their academic abilities further.
There is an assortment of age-appropriate yet extremely enjoyable science experiments for kids available that will grab their interest while aiding in their learning experience. Projects may range from testing the impact of antacid tablets on stomach acid production, to measuring plant growth under various lighting conditions.
These science projects are great because they require students to use creativity and intuition when conducting them – making them perfect for those wanting to do something creative or taking risks.
Additionally, these projects allow students to work with some cool materials – for instance using newspaper and tape to construct a geodesic dome that can support an impressive amount of weight; or collecting dry ice cubes, soda cans and household objects to experiment with making an efficient solar oven; not forgetting this engaging and interactive science experiment which explores air pressure, bubbles and many other fascinating concepts!
2. Salt Prevents Water from Freezing
7th grade students tend to be enthusiastic learners with diverse interests, which can be enhanced through science experiments. Science projects provide the perfect way for them to grasp concepts which might otherwise be hard for them to grasp in textbooks or classroom walls while making learning enjoyable and accessible – especially at science fairs where these projects provide exciting displays of results from 7th graders themselves!
Salt can lower water’s freezing point by keeping its ions (Na+ and Cl-) from organizing into crystal formations; otherwise known as freezing. Water molecules constantly attempt to freeze but these ions stop them. Therefore, when added to a cup of water with added salt, its temperature stays below freezing for longer compared to when consumed as is.
This experiment can teach children the fundamentals of chemistry and show them what happens when an acidic liquid is used to dissolve metals. Furthermore, this exercise may inspire them to examine their favorite sports drinks for any valuable electrolytes they contain.
3. Oil Pollutants Removed from Water
Substantive science topics that 7th graders as young adolescents can explore include biology, chemistry, physics, astronomy and environmental science. Participating in science fairs gives these students a great opportunity to expand their horizons further by selecting one branch of science they find most intriguing and applying their newly acquired knowledge to create projects which yield results and help further understanding of that particular subject matter.
Students can gain an insight into the water filtration systems used in homes and businesses through this simple experiment. By combining activated charcoal powder, dirty water, and glass jars, they will witness first-hand how this chemical process removes impurities from water supply.
Many pollutants enter our environment through farms, fertilizers added to farms and sewage from bathrooms and factories. This phenomenon, known as eutrophication, can create an imbalance of nutrients in water bodies affecting its quality and this simple experiment shows how this may occur and can be mitigated through using less harmful chemicals in water supplies.
Another excellent science project is this fast food nutrition study. Students interview willing test subjects about their eating habits, then compare the impact of different diets on their heart rates. This experiment allows students to understand the impact different diets have on their health and find what’s best for themselves.