3rd GradePart Five

Review

What Plants Need

• Water

• Light

• Soil (for nutrients)

• Air

What parts does a plant have?flower

leaves

stem

roots

Take in air and light that plants need to make food

Moves water through the plant; supports the plant above ground

Take in water and minerals; hold plant in the soil

Makes seeds for new plants to grow

Parts of a Seed

• A tiny seedling plant

• Food

• Seed coat

seed coat

seedling plant

food

Seeds• Most plants

reproduce by making seeds.

• Can be spread in the air, water, or by animals

• Can be found in flowers or cones

Life Cycle of Plant

A seed is planted and given water.

The seed germinates and begins to grow roots.

The seedling develops leaves for photosynthesis.

The seedling continues to grow.

The adult plant produces seeds to begin the cycle again.

The food making process of plants

Photosynthesis

Water and nutrients

sunlight Carbon dioxide

oxygen

Plant Adaptations• Parts of a plant that help

it adapt to meet its needs in its environment– Tendrils (help to reach

sunlight)– Thorns and spines (protect

from being eaten)– Spines/modified leaves

(conserve water)– Shallow roots (absorb the

most water)

Inherited Traits of Plants• Plants have traits they get from the parent

plant that help them survive in their habitat.

• Inherited traits in plants include color, size, shape, and texture of the plant.

Needs of Animals• Oxygen – through lungs or gills• Food – energy from eating plants, other

animals, or both• Water – from drinking in lakes or ponds or

from food• Shelter - protects from weather and other

animals• Light• A way to dispose of wastes

Inherited Traits• Examples: brown fur, long ears, ability to

spin a web, ability to swim

Some are body parts:

•Brown fur

•Long ears

•Horns

•Fins

Some are behaviors:

•Ability to spin a web

•Ability to swim

•Migrate for winter

•Build a nest

Adaptations of Animal Groups

Mammals• Have hair or fur on

their body• Breathe with lungs• Females make milk to

feed their babies• Live birth• Live on land or in

water

Birds• Have feathers, two

wings, and two legs.• Breathe with lungs• Hatch from eggs• Live on land

Adaptations of Animal Groups

Reptiles• Have dry skin covered with

scales• Most lay eggs on land• Live in water or on land• Breathe with lungs

Amphibians• Begin life underwater and

move to land as adults• Lay eggs in water• Have smooth, moist skin• Breathe with gills at first,

then lungs.

Fish• Most have skin covered with

scales• Live in water• Breathe with gills• Most lay eggs

MetamorphosisA change in the form or structure of an animal, usually

from birth to adulthood

AdultEgg

LarvaPupa

Life Cycle of a Butterfly

The Frog Life Cycle

Frogs go through a metamorphosis, or change, as they grow.