Students in seventh grade can create their own science fair project with parental assistance and make use of the scientific method to design, perform and record data regarding an experiment that interests them.
See if orange juice contains more vitamin C than water with this simple chemistry experiment. You could also experiment with burning birthday candles at various temperatures and creating a teleidoscope out of plastic bottle.
Water-Powered Rocket
Students using water pressure can create a soda bottle rocket that soars higher and further than any propelled by air alone, providing an entertaining experiment sure to fascinate both children and adults alike.
Amaze your students with an amazing chemistry demonstration using only drugstore supplies! Iodine clock reaction is an amazing way to introduce Bernoulli’s principle and make them gasp with amazement!
After conducting rocket trials, instruct student pairs to review their design worksheets to make sure their rocket designs can fly straight and far. Encourage discussion among them regarding why certain designs worked or did not, as well as ways they might be improved upon.
Insulating Bottles
Insulation slows the transfer of heat and can be found in materials like glass, cardboard, aluminum foil, plastic (such as Styrofoam) and wool. Students in this hands-on science experiment test and compare various insulating materials’ ability to keep items warm or cool.
Germ experiments are popular with seventh graders. Students swab school supplies, tools and other items to discover what lives there before engineering solutions to reduce bacteria levels – an engaging STEM challenge they can complete without spending a penny!
Birthday Candles
If you’re in search of an easy science fair project without needing beakers, Bunsen burners, and test tubes – try this candle experiment instead.
Kids can observe and compare two identically lit candles to gain insight into how gravity influences their burn rate.
Students can conduct this fun germ experiment using household items, school supplies and even their pet! Just ensure you follow all safety regulations when handling flammable or combustible materials.
Fruits and Vegetables
Children can gain knowledge about greenhouse effects through this engaging experiment. Just be sure that it’s overseen properly as it involves fire.
Students can examine whether different fruits possess comparable levels of moisture. Dehydrating various fruits will allow them to identify which ones have the highest Vitamin C concentrations.
Students can gain more insight into density with this fun experiment. By layering oil, corn syrup and water on top of one another they can test which liquid floats, while also exploring whether temperatures alter the density of liquids.
Bridges
Students build bridges from paper and other materials to see which can carry the most weight, while using their knowledge of forces acting upon bridges to assess why some fail.
Explain to students that engineers often test the designs of bridges by placing a small cup at its center and adding pennies until it collapses, then asking for examples of bridge failure from around the world. Encourage students to share other examples.
Simple Motor
Are you searching for an impressive yet straightforward science fair project? Consider building a simple motor. Students can explore how changing variables affects its final speed while making use of just a few special supplies.
Electric motors can be found in many appliances and toys in our homes. In this experiment, a permanent magnet and electromagnet are utilized to explore how strength of attractive or repelling forces affect motor spin. Furthermore, it also examines what effects changing coil count has on this experiment.
Carbon Sugar Snake
The Carbon Sugar Snake experiment is an age-old science classic that never ceases to amaze children and adults alike. Simply combine sugar and baking soda in equal portions with a flame to light your mixture!
As the pile burns, lack of oxygen causes its decomposition to release carbon dioxide gas and water vapor; this causes sugar crystals to release carbon dioxide gas that expands to form a black snake-like mass that continues growing for over 20 minutes.
Plastic Milk
This exciting classroom experiment will delight kids of all ages. Additionally, it serves as an ideal opportunity to introduce green chemistry – the study that advocates using renewable natural resources instead of petroleum or fossil fuels as raw materials for chemical reactions.
Milk contains molecules of a protein called casein, which when heated and combined with acid can unfold and reform into long chains that resemble plastic. Once this process begins, curds can be formed that can then be molded, colored and colored further for use as casein polymers – creating new kinds of milk plastics!