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Topic 2 Branches and Leaves Scienc e SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013

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Page 1: Science - Topic 02: Plant Parts - branches and leaves

Topic 2

Branches and Leaves

Science

SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013

Page 2: Science - Topic 02: Plant Parts - branches and leaves

Photosynthesis

Green leaves make a plant’s food.

SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013

Topic 2

Page 3: Science - Topic 02: Plant Parts - branches and leaves

Photosynthesis

They use the energy of sunlight, gas from the air and water to make sugar. This process is called photosynthesis.

SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013

Topic 2

Page 4: Science - Topic 02: Plant Parts - branches and leaves

Photosynthesis

To do this leaves must face towards the sun.

SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013

Topic 2

Page 5: Science - Topic 02: Plant Parts - branches and leaves

Leaves and Air

Leaves help the plant breathe as it grows.

You breathe in and out through your nose and mouth.

A plant breathes through its leaves.

SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013

Topic 2

Page 6: Science - Topic 02: Plant Parts - branches and leaves

Leaves and Water

Leaves pull water and minerals through the plant.

Water and minerals are taken in at the plant’s roots and pulled up the stem to every part of the plant.

SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013

Topic 2

Page 7: Science - Topic 02: Plant Parts - branches and leaves

Leaves and Water

Water moves through the plant from the roots, up the stem and branches and out through the leaves.

SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013

Topic 2

Page 8: Science - Topic 02: Plant Parts - branches and leaves

Leaves and Branches

As a tree grows, branches grow out from its stem (trunk).

Leaves grow from the branches.

SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013

Topic 2

Page 9: Science - Topic 02: Plant Parts - branches and leaves

Leaves and Branches

As a plant gets bigger it needs more food and more air, so it must grow more leaves.

It grows more branches so that the leaves are spread out and do not shade each other.

SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013

Topic 2

Page 10: Science - Topic 02: Plant Parts - branches and leaves

Branches and Leaves

SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013

Topic 2

branchesfood breathe

Page 11: Science - Topic 02: Plant Parts - branches and leaves

Branches and Leaves

SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013

Topic 2

THE END


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