Botany Science Fair Projects

Ready to get your hands dirty? Explore the kingdom plantae with these botany science fair projects and botany experiments for kids. has tons of great ideas for botany and plant projects that can be completed indoors or outdoors at minimal cost and with basic materials. Kids will love discovering how concepts like phototropism, gravitropism, photosynthesis, and transpiration aren't just things they can read about in textbooks—they're very cool biological processes that can be readily observed at home.

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Check out this cool science fair project idea to explore the relation between onions and eyes and how to  prevent eyes from tearing while cutting an onion.
Middle School
Science fair project that examines the vein structure (venation) of leaves in order to determine the class of the plant sample.
Sixth Grade
This science fair project idea  determines whether plants grow better in soil or in fish ponds.
Middle School
The objective of this science project is to determine the length of time for different seeds to germinate.
First Grade
This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.
Elementary School

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