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1000 Science Fair Projects with Complete Instructions

Plant hormones are signals that tell plants what to do, like when to grow bigger or make more fruits. When we understand how plant hormones work, we can help plants grow better and give us more food to eat!
Does One Bad Apple Spoil the Bunch?
Plant Hormones Science Fair Project
Easy
Have you ever wondered why apples ripen at the same time? Find out if one bad apple can spoil the bunch in this fun science project!
Preserving Flowers with Sugar
Plant Hormones Science Fair Project
Easy
Do you want to make your flowers last longer? Try adding sugar to the water!
Rootone and Plant Growth
Plant Hormones Science Fair Project
Medium
Let's find out how the plant hormone Rootone affects the growth of plants!
The Effects of Growth Hormones
Plant Hormones Science Fair Project
Hard
Let's explore how growth hormones can help plants that have been exposed to radiation!
Exploring Plant Hormones
Plant Hormones Science Fair Project
Hard
Discover how hormones affect the growth of plants!
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