3rd Grade Ch. 12 lesson 3 how do simple machines affect work
3rd grade-Ch. 1 Lesson 1 What are the main parts of a plan
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Ch. 1 Lesson 1 What are the main parts of a plant?
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Transcript of 3rd grade-Ch. 1 Lesson 1 What are the main parts of a plan
Ch. 1 Lesson 1 What are the main parts of a plant?
The two plants are alike because ___________.The two plants are different because ________.
Activity- pg. 4 How are plants alike and different?
need:
Living things need:
food
Living things need:
water
Living things need:
Living things need:
space to live & grow
Plants use energy from the Sun to make their own food.
4 main parts
of most plants
flower stem leaves roots
stem
roots
flower
leaves
stem
roots
flower
leaves
Leaves come in many shapes & sizes.
A plant’s leaves make up its leaf system.
• system= parts that work together
Why plants need leaves1. Make sugar (food) & oxygen by using carbon dioxide, water & sunlight
Water enters the leaf from the roots and stem.
Leaves make sugar for food that passes through the stems rest of the plant.
Carbon dioxide enters the leaf & oxygen escapes through tiny holes under the leaf.
Plants use energy from the sun to change carbon dioxide & water to make sugar & oxygen.
Why plants need leaves2. Balance water intake
Why plants need leaves3. Protect plant from being eaten
Some leaves protect a plant from being eaten.
Leaves might be poisonous, sharp or tough to chew.
poison ivy
All living things need:
All living things need:1.Food2.Air3.Water4.Space to live & grow
4 main parts
of most plants
4 main parts
of most plants
flower leaves rootsstem
Where do plants get the energy they need to make their own food?
Where do plants get the energy they need to make their own food?
from the Sun
A plant’s leaves make up its leaf ______.
A plant’s leaves make up its leaf ______.
• system= parts that work together
system
True or False.Leaves come in many shapes &
sizes.
True or False.Leaves come in many shapes &
sizes.
True
_________ and _________ are made in the leaves of a plant.
_________ and _________ are made in the leaves of a plant.Sugar oxygen
Why do plants need leaves?
Why do plants need leaves?1. Make sugar (food) & oxygen by using carbon dioxide, water & sunlight
2. Balance water intake3. Protect plant from being eaten
How are plants and animals similar?
How are plants and animals similar?
•Both need food, air, water and space to live and grow.
What can plants do that animals cannot?
What can plants do that animals cannot?
•Plants can make their own food. Animals cannot make their own food.
How is the structure of an oak tree the same as a
tomato plant?
How is the structure of an oak tree the same as a
tomato plant?
•Both are plants, and have leaves, roots, stems and flowers.
What is the purpose of the tiny holes in a leaf?
What is the purpose of the tiny holes in a leaf?
•The tiny holes allow oxygen to pass out of the leaf and carbon dioxide to enter the leaf.
