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Elementary School Science Fair Project Ideas

Great selection of elementary school science fair project ideas. These science fair projects can help you find elementary school level ideas for your science fair.

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Elementary School “plant-biology”
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This science fair project explores how osmotic pressure forces water through the root up into the plant.
How Does Water Travel Up the Root of a Plant?
Elementary School
Third Grade
The objective of this experiment is to try and reverse a plant's natural biological rhythms by artificially switching daylight and nighttime periods.
Night Watch: Can We Train a House Plant to be Awake at Night?
Elementary School
Fourth Grade
This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.
Do Plants Experience Pollution? Will Plants Grow More or Less or be Unaffected when Grown in Polluted Soil?
Elementary School
Easy
Explore if planting seeds in a certain direction will affect how fast it germinates.
Do You Need To Plant Seeds A Certain Direction For It To Germinate?
Third Grade
Fourth Grade
This science fair project idea explores whether talking to a plant will help it grow.
Talking to Plants
Elementary School
Third Grade
This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.
Upside-Down Plants
Elementary School
Third Grade
Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.
Garbage Plants
Fifth Grade
Sixth Grade
Test whether plants can grow without sunlight and water.
Can Plants Grow Without Sunlight or Water?
Elementary School
Second Grade
Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.
Do Plants Need Water?
Third Grade
Fourth Grade
The purpose of this science fair project is to investigate whether cooking seeds before planting will speed up germination and growth.
Cook Seeds Before Planting?
Elementary School
Botany
Plants need water to grow. In this project we learn how plants transport water from their roots to their leaves
Plants and Water
Elementary School
Kindergarten
Here is a cool science project showing reproductive parts of a flower and explaining the formation of fruits and seed through the process of fertilization.
Enlarged: How do Plants Make Seeds and Fruit?
Elementary School
Botany
Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.
Soil Ecology
Fifth Grade
Sixth Grade
Get free science fair project ideas for elementary school children that cover topics on microscopes and magnifying lenses.
Bumpy: How do Bacteria Help Some Plants Live?
Elementary School
Easy
This science fair project will help students learn about non-vascular plants, such as mosses.
Water and Mosses
Second Grade
Third Grade

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