Fun Fourth Grade Science Fair Ideas
Students in the fourth grade are required to learn about various science concepts such as life cycles, magnetism, technology, motion, personal health and the environment. An excellent way to get students actively involved in learning science is to allow them to create projects for a science fair. This can deepen their understanding of scientific concepts and allow them to showcase their skills and talents.
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Seed Depth
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This experiment studies the effect of soil depth on plant growth. In order to conduct this experiment, the student must place soil in four to six containers and then plant bean seeds at various depths. For instance, you could plant seeds at 1 inch deep, 2 inches deep, 3 inches deep, 4 inches deep and 5 inches deep. Label the containers so you know how deeply each seed was planted. Over the following weeks try to provide the same environment for all the plants. This includes equal watering, fertilizing and exposure to sunlight. At the end of a certain period of time, write the results of your experiment. You also could draw a graph charting the growth of each plant or a graph that compares the overall growth of all the plants.
Activity and Heart Rate
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This science project gives a description of how activity affects heart rate. Have the student check his pulse after various physical activities such as walking, running, jumping rope, skipping and swimming. Then have the student check his pulse after some every-day type activities such as making a bed, watching television, playing a video game, taking a bath and getting dressed. The child also needs to obtain a resting heart rate as a baseline from which to compare the other measurements. Once all the data is collected, the student can display a graph showing the relationship between the type of activity and the heart rate measurement the activity induced.
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Rusty Nail
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This project takes a look at what conditions are most conducive for oxidation to take place. The experiment requires four or five clear plastic containers, four or five nails and four or five different liquids. The student will fill each container with a different liquid, such as water, orange juice, soda, diet soda, milk or tea. Then the child will drop a nail into each container. You can collect data from this experiment by making observations about the nail after various increments of time (a few minutes, a few days, a few weeks). Finally, the student can write a report about whether the type of liquid influenced the rate of oxidation as well as the extent of the rust.
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