Hydroponics in a 2-Liter Soda Bottle – STEM activity.
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Do you think plants can grow without soil? If you've tried growing veggies, you probably planted the seeds or seedlings in soil. Soil gives the plants the nutrients they need to grow. However, plants can grow without soil, too, using a process called hydroponics. In this activity, you will transform a 2-liter soda bottle into a mini-garden that needs only light, air, and nutrient-rich water to grow!
What do plants need to grow? Most of us would answer that they need light, air, water, and soil. But by using a process called hydroponics, you can grow plants without soil! How does it work? Try this project and see for yourself!
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A hydroponics experiment gave this student more than just the chance to learn more about growing plants. She also cultivated strong problem-solving skills as she moved her experiment to the garage.
Above: Madeline at the science fair with her hydroponics project.
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