Download Chapter vocabulary graphic organizer

Chapter 1: Plants and How They Grow
Concept web
Leaves make sugar and
oxygen
Leaves use water, carbon dioxide,
and energy from sunlight
Chapter vocabulary graphic organizer
Kinds of Trees
deciduous
coniferous
Interacting Parts of a
System
seedling
seed leaf
Events in the Life of a
Plant
pollinate
germinate
Plant Types No Longer
Living
fossil
extinct
system: a set of parts that work with one another
deciduous: loses leaves in fall and grows new ones in spring
pollinate: move pollen from that part of a flower that makes pollen, to the part of a flower that makes seeds.
coniferous tree: a tree that produces seeds in cones
seed leaf: part of a seed that has stored food
germinate: begins to grow (pg. 20)
seedling: a new, small plant that grows from a seed
fossil: remains or mark of a living thing from long ago
extinct: no longer lives on Earth
Lesson 1
What are the main parts of a plant?
There are 4 main parts: leaves, roots, stems, and flowers
What do all living things need?
Living things need food, water, air and space.
Plants make their own food by using energy from the sun
Why Plants Need leaves.
Leaf system
Oxygen
Plants make and let
out oxygen gas when
they make sugar
Gas
Carbon dioxide
enters the leaf
through tiny holes
on its underside.
Sun
Plants need energy
from the Sun to
change carbon dioxide
and water into sugar
and oxygen
Leaf Veins
Tiny tubes called leaf
veins deliver water to the
leaf. They also carry
sugar made in the leaves
to the rest of the plant
Sugar
The leaves make sugar for
food that passes through
the stems to the rest of the
plant
Water
enters the leaf from
the roots and stem
What are other ways leaves help plants?
They balance the amount of water plants take in by letting some water out through the tiny holes on the underside.
In dry places leaves have waxy or fuzzy coatings to help keep water in
Leaves help a plant from being eaten because they can be poisonous, sharp, or tough to chew.
Using the above information students should be able to answer the following questions:
1.
How are plants and animals similar?
They need food, air, water and space to live and grow
2. What can plants do that animals cannot?
Plants can make their own food.
3. How is the structure of an oak tree the same as a tomato plant?
An oak tree and tomato plant are both plants. They both have leaves, roots, stems and flowers.
4. What is the purpose of the tiny holes in a leaf?
They allow oxygen to pass out of the leaf and carbon dioxide to enter the leaf.
5. Explain how a leaf helps a plant control its water amount.
A leaf lets out water through its tiny holes if there is too much water in the plant. In dry places, leaves have
fuzzy or waxy coatings that help keep water in.
6. What might happen to a plant if you taped the bottom of its leaves?
The plant would die because it could not get or gives off the gases it needs or give off water.
Lesson 2
Why do plants need roots and stems?
Roots help plants
 Hold the plant in the ground
 Take in water and materials called minerals from the soil.
 Store food made by the plant
Taproots are large roots such as carrots, dandelions and beets
Water and minerals travel up the root through tubes to the stem and leaves
Water enters the root through the root hairs
Stems help plants
 Holds up the leaves, flowers, and fruits
 They have tubes that move water and minerals from the roots of the plant to the leaves.
 Other tubes carry food from the leaves of plants to the stems and roots
 Parts of some stems grow underground. A potato is this kind of stem. These kinds of stems can sprout new
stems from buds such as the potato’s “eyes.” They grow upward to form a new plant.
Different kinds of stems
 Stolons: thin and grow along the surface of the ground. They can grow roots and a new plants
 Vines: grow parts that wrap around objects that support the plant
Cactus stems
 These swell us as they store water/ the stems shrink as the plant uses water
 They also have thick, waxy covering to help keep them from losing water
 Have spines growing out of it which is a special kind of leaf that keeps animals from eating it
Using the above information students should be able to answer the following questions.
1.
2.
3.
4.
5.
What is a taproot
One large root that grows deed into the soil
How do tiny root hairs help a plant?
They take in water
Why do you think carrots and beets are such thick roots?
They hold a lot of water, nutrients, and food for the plant
How do roots help a plant?
They hold up the plant, take in water and minerals and store food made in plant leaves.
What materials do the stem tubes move?
Water, minerals and food
6. How is the movement of water different from the movement of food in plant stems?
Water moves from the roots to the leaves, while food moves from the leaves to the stems and roots.
7. How do stems help a plant?
Stems support leaves, flowers and fruits. They carry food from the leaves to the roots. Some stems help protect
the plant form enemies
8. How are roots and stems alike and different?
Alike: they help support plant and transport materials.
Different: roots are below ground, while stems are usually above round; some stems help make food or store
water, some roots store food.
9. Suppose that the stem branch of a plant is cut. Why do the leaves on the cut branch wilt and turn yellow while
the other leaves remain healthy?
The tubes that carry water and minerals from the roots to the leaves have been cut, so the leaves on the cut
branch do not get the materials they need to survive.