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 about Homework Help
Some ideas for middle school science projects include finding out what plants grow in which soil pH level and discovering the electrical conductivity of certain soil types, says Live Science. Other science projects include discovering natural water filters and the most effective plastic wrap to prevent evaporation, according to About.com.Full Answer >
High school science project ideas include the effects of acidity on invertebrates and natural materials that make pigments, notes Mary Bagley for Live Science. Other ideas are the effects of breakfast on school performance and the effects of different fertilizers on plant growth, states Dr. Anne Marie Helmenstine for About.com.Full Answer >
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 appropriate project for a math class depends on the grade level of the pupils. However, there are basic experiments in geometry, such as using juice boxes, and statistics, such as using the birthday paradox, that can give students a deeper understanding of mathematical concepts.Full Answer >