Download Grade 2 Science Notes Chapter 1 Plants

Grade 2 Science Notes
Chapter 1 Plants
1. What do plants need to grow?
Plants need light, air, water, space, and nutrients to grow.
2. Parts of a plant: (Be able to label each part on a diagram)
1. roots--hold the plant in the soil and take in water from the soil
2. stem –carries water and nutrients to the leaves, and holds up the plant
3. leaves—use light, air, and water to make the sugars that the plant needs to grow
4. flowers—make seeds; new plants grow from the seeds
3. What is inside the seed?
Inside a seed you will find a tiny plant and stored food.
4. How do seeds scatter?
1. Animals scatter seeds by eating fruits and dropping the seeds.
2. Wind and water carry seeds to many different places.
3. Some seeds get caught on animal fur or people’s clothing.
4. Some fruits burst when ripe scattering their seeds.
5. Uses for plants:
1. Plants are a source of food we eat.
2. Plants are a source of the oxygen we breathe. Plants take in carbon dioxide and
give off oxygen.
3. We use wood for lumber and paper
4. Many medicines come from plants.
5. Rubber and cotton come from plants. We use them for tools and clothing.
6. Nutrients--Nutrients are materials that living things need to grow. Plants get
nutrients from the soil.
7. There are two types of plants:
1. Plants with flowers-- (:sunflower plant, bean plant, apple tree)
2. Plants without flowers- (pine trees, ferns, mosses)
8. A plant’s environment is all the living and nonliving things around it.
9. Some plants have adapted or (changed ) to survive in their environment:
Examples 1. A maple tree loses its leaves in winter so the tree can keep the water
it needs to live during the cold winter months.
2. A cactus in a desert has a long thick stem to hold water
3. A Venus fly trap lives in a very wet environment with little soil and
gets the nutrients it needs from the insects that are trapped and absorbed
by its leaves.
10. prairie—a place with lots of grass and few trees. Many prairies have hot summers
with little rain.