Medium
Learn how different types of fertilizers affect the nitrate content in runoff water!
Hard
Can oil absorbing polymers help clean up contaminated soil and make it suitable for growing plants? Find out in this science project!
Hard
Can plants help clean up contaminated soil? Find out by using Thlaspi plants to remove zinc from soil!
Medium
Are natural pesticides like lemon juice more effective than apple, tomato, or carrot juice against ants? Find out in this science project!
Hard
Can Bay Laurel leaves help you get rid of pesky weeds? Find out in this science project!
Medium
Do plants grow faster in soil or in a nutrient solution? Find out by comparing the growth of a Peperomia plant in soil and in hydroponics!
Medium
Can antifreeze affect the growth of radishes? Find out in this experiment!
Medium
Does adding organic material to soil make it absorb more water? Let's find out!
Easy
Can you tell which object is better for our environment? Test your recycling sense with this fun experiment!
Medium
Does your dish soap have an effect on your garden? Find out in this experiment!
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