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What you will learn from this videoWhat you will learn
- Plants need the right amount of water and light to grow best.
- Soil quality can affect how well plants grow.
- To find the best conditions you need to experiment.
- Discussion Questions
Before Video
What are the things that plants need to grow?ANSWERPlants need air, water and sunlight.
They provide food for humans and animals. They produce the oxygen we need to breathe. They stop soil erosion. They provide materials for our homes and clothes. They are enjoyable to look at.
It would dry up and die.
It would not grow. It would turn yellow or brown and die.
Plants need sunlight to make nutrients they need to grow. They cannot live a long time without sunlight.
No, all living things need water. Plants use water in a process called photosynthesis to make nutrients.
After Video
How does water affect plant growth?ANSWERPlants need just the right amount of water. Too much or too little will cause the plant not to grow as well. Some plants need more water than others.
Plants use sunlight to make the food they need to grow. If a plant does not have any sunlight, they will lose their color and eventually die. Some plants need more light than others.
The plant that was given too much water grew a small carrot. It got too much water.
Loam is a combination of sand, clay and other natural materials. It holds the water better than sand or clay.
The carrot with the most light grew the biggest. Some plants need more light than others.
The plant needs good soil, and the right amount of water and light to grow best.
- Vocabulary
- Soil DEFINE
The upper layer of Earth where plants grow.
- Clay DEFINE
Stiff, sticky material found on the Earth’s surface.
- Sand DEFINE
Very small grains of rock.
- Loam DEFINE
A combination of sand, clay, minerals and dead or decaying plant material.
- Observe DEFINE
To notice something using your senses.
- Growth DEFINE
The process of increasing in size.
- Sunlight DEFINE
Light that comes from the sun.
- Seeds DEFINE
The part of a plant that can grow into more plants.
- Soil DEFINE
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