Juara 2 Video STEM KihajarSTEM Tingkat Nasional-Teknologi Biofotoreaktor Sederhana Penghasil Oksigen

Summary

In this inspiring video, Savana, a third-grade student from Bandung, presents her innovative project called the 'Simple Photo Reactor Technology' that generates oxygen. With the world facing the pandemic, Savana and her family have been staying home, where she discovered the need for oxygen. Using a glass container, blue and red lights, and an aquatic plant called Hydrilla, she demonstrates how photosynthesis can create oxygen, improving air quality at home. The project shows how simple tools can generate oxygen and improve indoor air, making it a perfect solution for households during challenging times.

Takeaways

• 😀 The speaker is Savana Irithrina Budiawan, a third-grade student and a finalist in the 2020 Charger STEM competition.
• 😀 The project introduces a simple photo-reactor technology that generates oxygen, aiming to improve indoor air quality during the pandemic.
• 😀 Due to the pandemic, the speaker and their siblings must stay indoors, which increases the need for fresh oxygen and air quality.
• 😀 The speaker explains that plants generate oxygen through photosynthesis, utilizing sunlight, especially red and blue light.
• 😀 The speaker's project involves creating an oxygen-producing device using plants, specifically an aquatic plant called *Hydrilla*.
• 😀 The setup includes a glass container, a straw, red and blue lights, a pH indicator, and a mesh wire to house the aquatic plant.
• 😀 The device works by detecting pH levels in water, which are influenced by carbon dioxide in the air, lowering the pH when CO2 is introduced.
• 😀 Breathing carbon dioxide into the system lowers the pH of the water, demonstrating that the plant is absorbing the CO2 and converting it into oxygen.
• 😀 The photosynthesis process in the aquatic plant produces oxygen, which is visible as bubbles, improving indoor air quality.
• 😀 The project also has the potential to be used as a decorative lamp, providing both functional and aesthetic value to the home environment.

Q & A

What is the main objective of Savana's project?

The main objective of Savana's project is to create a simple oxygen-producing reactor using plants to improve air quality, especially during the pandemic when staying indoors is required.

What type of plant is used in the oxygen-producing reactor?

The plant used in the oxygen-producing reactor is called Hydrilla, an aquatic plant.

How does the oxygen-producing reactor work?

The reactor works by utilizing a plant that performs photosynthesis. It uses carbon dioxide and water, and when exposed to red and blue light, it produces oxygen, which improves the air quality.

What role does carbon dioxide play in the project?

Carbon dioxide is important because it lowers the pH of the water, and this reaction is essential for the photosynthesis process carried out by the plant, which produces oxygen.

How is pH detected in the experiment?

The pH of the water is detected using pH indicator paper. The paper changes color to show the level of acidity in the water, which is influenced by the presence of carbon dioxide.

Why is red and blue light used in the project?

Red and blue light are used because they are the most effective wavelengths for photosynthesis in plants. These lights help the plant produce oxygen during the process.

How does Savana confirm the oxygen production from the plant?

Savana confirms the oxygen production by observing bubbles of oxygen coming out of the plant, which improves the air quality in the room.

What happens to the water's color during the experiment?

The water's color changes to green over time, indicating that the photosynthesis process is taking place and that carbon dioxide is being consumed, which helps reduce its presence in the water.

Can this oxygen-producing technology work without sunlight?

Yes, the technology can work without sunlight. The red and blue light used in the reactor provides the necessary light for photosynthesis, so the plant can still produce oxygen indoors.

What is a potential additional use for this oxygen-producing reactor?

The reactor can also be used as a decorative nightlight due to its attractive appearance and functionality in producing oxygen.