Roots hold plants in the ground and absorb water and minerals from soil. Stems hold up leaves, flowers, and fruit, and contain tubes that carry water and nutrients throughout the plant. Leaves use energy from the sun to make food through photosynthesis, taking in carbon dioxide and releasing oxygen.

1. Chapter 1 - Lesson 1 What do Roots, Stems,
and Leaves Do
mineral carbon dioxide
1. mineral - a natural, nonliving material that can
be found in the soil.
2. carbon dioxide - a gas in the air that plants use
to make food.

2. Chapter 1 - Lesson 1 What do Roots, Stems,
and Leaves Do
Background
· Plant roots, whether taproots such as those of
dandelions or fibrous roots such as those of
grasses, hold plants in the ground and absorb
water and minerals from soil.
· Stems hold up a plant's leaves, flowers, and fruit
and contain a system of tubes that carry water
and nutrients throughout the plant.

3. Chapter 1 - Lesson 1 What do Roots, Stems,
and Leaves Do
Notes
Roots Stems Leaves
1. Uses energy
1. hold plants in the 1. hold up leaves,
from the sun to
ground. flower, and fruit.
make food.
2. carry water,
2. take water and
2. take in carbon
food and minerals
minerals from soil. dioxide and
through plant.
release oxygen.

4. 10-1-12
Chapter 1 - Lesson 1 What do Roots, Stems,
and Leaves Do
Quick Quiz #1
1. Explain how a root keeps a plant stable in the
ground.
The root holds the plant firmly in the
ground, keeping it from falling over.
2. What characteristic of stems helps transport
water and minerals to leaves?
Tiny tubes carry water and minerals from
the roots to the leaves.
H.O.T. What would happen to a plant if the soil in
which it was growing lackd the minerals it needed.

5. Chapter 1 - Lesson 1 What do Roots, Stems,
and Leaves Do
Background
· Plant leaves have different shapes and sizes. Leaves may
be needle-shaped, lobed, flat, wide, curled, or long and
slender.
· Photosynthesis, the series of chemical reactions that
plants carry out to convert water and carbon dioxide into
sugar and oxygen, takes place primarily in leaves and
occasionally in stems. Plants get water from the soil and
carbon dioxide from the air.
· The energy to make food comes from the sun and is
stored as sugar in plant's leaves, stems, and roots.

6. 10-1-12
Chapter 1 - Lesson 1 What do Roots, Stems,
and Leaves Do
Quick Quiz #2
1. What is the source of the energy plants use to
make food? (Where do they get the energy
from)?
The source of energy plants use to make
food is the sun.
2. Where do plants store the sugar?
Plants store the sugar in leaves, stems
and roots.
H.O.T. Compare and contrast a plant stem with a
drinking straw. How are they alike? How are they
different?