Download Science Study Guide 1.4-1.5

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Science Chapter 1.4 Study Guide
Chapter 1.4 How Do New Plants Grow
What is a seed?
Every seed has a tiny plant inside it that can grow into a new plant. Seeds need air, the right amount of
water, and the right temperature to begin to grow.
Key Terms:
Seed coat- covers the seed to protect it.
Germinate- when a plant starts to grow.
Seedling- a young plant. Once the root grows from the seed it is called a seedling.
What is the lifecycle of a plant?
1. The seed is planted in the ground
2. The seed begins to germinate (starts to grow) The roots grow downward and the stem
grows upward.
3. The seed grows roots and is now a seedling. The young plant can now grow leaves and begin
making its own food.
4. The plant becomes an adult plant with seeds.
5. When the adult plant dies it becomes part of the soil and the lifecycle starts again.
Chapter 1.5- How are plants from the past like today’s plants?
1. A fossil is the remains or mark of a living thing from long ago.
2. Extinct-plants that lived long ago and are no longer alive.
3. How is the fern fossil in the picture formed?
The plant was pressed into the mud. Overtime the
mud became a rock. The flat imprint of the plant is
seen when the rock cracks open.
4What is one difference between early plants and those of today?
Plant fossils show us that the first plants did not have flowers or cones.