This document discusses the key parts of plants including leaves, stems, and roots. It describes how plants can be classified by their stems into bushes, trees, and grasses. The document also explains the differences between flowering and non-flowering plants, and describes the process of photosynthesis whereby plants produce food using water, minerals, carbon dioxide, and light energy.

1. Plants, Plants, Plants!
Mia Taskey, Natural Science, 3rd

2. Parts of a Plant
Leaves
Stem
Roots
Many plants have 3 parts

3. Trivia!
What do we call the stem of a tree?
The trunk!

4. We can classify plants by their stems...
1. Bushes
2. Trees
3. Grasses

5. ● Shorter than trees
● Can have more than one stem
● Low branches
Bushes
Bushes

6. Trees
● The tallest plants.
● High branches
● Their stem is called a trunk
Trees

7. Grasses
● Short, thin stems.
● Flexible and bendy.
Grass

8. Flowering Plants
and
Non-Flowering Plants

9. Flowering Plants
Angiosperms Gymnosperms
They make
flowers and fruit.
The seeds are
developed
inside the fruit.
Gymnosperm
seeds are
developed inside
the cones
Gymnosperms do
not make fruit.

10. Is this tree an
Angiosperm or
Gymnosperm?

11. Gymnosperm!

12. Non-Flowering Plants
Mosses and Ferns are non-
flowering plants.
Non-flowering plants use spores to
reproduce.

13. Reproductive Organs
of Flowering Plants

14. Where are the reproductive organs?
They are inside
the flowers!

15. What part of the flower attracts insects?

16. The petals!
The petals are bright and colorful.
They attract insects, like bees!

17. What part of the flower makes pollen?

18. The Stamens
The stamens produce
pollen.
Insects or the wind
carry the pollen.

19. What are the two parts of the carpel?

20. The seeds grow in the carpel.
There are two parts of the
carpel:
1. Stigma
2. Ovary
The Carpel

21. What Is Photosynthesis?

22. Photosynthesis is
how plants make food.
It is a process.

23. Plants need these things
for photosynthesis:
-Water
-Minerals
-Carbon dioxide
-Light energy

24. Here’s the process of photosynthesis:
1. Roots absorb minerals and water.
1. They are transported to the leaves through the stem.
1. Light energy and carbon dioxide enter through the leaves.
1. The water, minerals, and carbon dioxide react with help from light energy and
make the food.
1. The food goes to every part of the plant.
1. The plant gives oxygen into the air.

25. The end!