Some good ideas for a ninth-grade science project are an experiment to determine the effectiveness of teeth whiteners, ways to keep bread fresh longer, and what makes a clothes dryer more efficient. They do not require a large amount of time, and all references used to research project topics should be cited.Know More
For the teeth whitener project, several test members can be enlisted to experiment with one brand of teeth whitener, or several brands, and progress measured depending on the hypothesis. Finding ways to make a clothes dryer more efficient involve trying different variables to determine which actions make clothes dry faster.
A suitable science project for a ninth-grader involves determining ways to affect the germination rate of seeds. Seeds can be pre-rinsed in a fruit juice or in chemicals such as diluted hydrochloric acid solution, diluted isopropyl alcohol solution or hydrogen peroxide. The experiment can be to check if the chemicals loosen the coating around the plant embryo and how it changes the seed germination.
Projects to deduce if listening to music helps memory, what type of material creates the best sound for speakers, what affects a light bulb life span, and measuring the amount of acid in rain are also suitable ninth-grade science experiments.Learn More
Building a rainforest terrarium and determining where a soil horizon begins are two ecosystem project ideas. Building a rainforest terrarium takes two to three weeks to complete and is a group activity, and it is possible to determine where bits of plants become soil instantly in the soil horizon experiment.Full Answer >
The relationship between eye color and peripheral vision is a fairly simple and inexpensive idea for a science project. Using a homemade vision protractor, the peripheral vision of several subjects with different eye colors can be tested and charted to see if any correlation is noted.Full Answer >
According to ScienceFairAdventure, determining if color affects the rate at which a candle burns is an interesting science experiment conducted using candles. This science experiment determines which color of candle burns the fastest and which ones burn the slowest.Full Answer >
Easy projects for the 100th day of school can involve collecting or organizing things in groups of 100. For example, students can collect 100 items that have to do with topics discussed in class, such as 100 math problems, 100 books about a certain subject or 100 cool science facts.Full Answer >