Share Science 5 Unit 1
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What does a seed need to germinate
Warmth, air, water
Does a seed need light to germinate? Explain.
No. Light is needed for the plant to make its food in its leaves. Seeds have a food store for food
What is a plant embryo?
Tiny plant inside seed
What is a seed scar
A mark on a seed showing where it was attached to the fruit
Why does a seed need a seed coat?
Protection
What does shrivel mean?
Becomes smaller and drier
What does absorb mean?
Take in
During germination what part of the plant grows first?
The root
What is the shoot?
The part of the plant that grows up (stem)
Seeds can live without germinating for years. What are they waiting for?
The right conditions. Warmth, air, water
Why do roots grow down?
To get water and anchor the plant into the ground
Why does the shoot grow up?
Needs to break through the soil so the leaves can get sunlight to start making food
Why does the seed shrivel after germination?
Because the food store gets used up
Seeds absorb ________ to start germination
Water
What does a plant need?
Air, water, warmth, light
What is a fair test?
A test where are variables except the independent are the same
