A food chain shows the order of how living things get their food.
If animals and plants can’t get what they need:
Some animals move to a new habitat.
_______ is a powder inside a flower that helps make seeds
Pollen
What Happens When a Habitat Changes?
Why Do Plants and Animals Live Together?
Animals, like bees, help plants grow by spreading __________
pollen.
Example:
Woolly mammoths became extinct when their habitat changed.
Some animals, like Tyrannosaurus rex, lived long ago. How do we know what these animals ate?
Scientists like Jin Meng study fossils to find out. Fossils are what is left of living things from the past.
The Sun is the start of most food chains:
Without the Sun, plants wouldn’t grow, and animals wouldn’t have food.
Think Talk and Write...
let's go back to the book and answer some questions.
When all of one kind of plant or animal dies, it is called....
extinction
A field mouse eats berries from a plant.
Plants give _____and ______ to animals
food and shelter
Plants Help Animals:
Natural events, like lightning, can start a fire and destroy habitats.
Cutting down trees or polluting water can hurt plants and animals.
Other animals...
might die.
What is a Food Chain?
Fun Fact:
Pollen can stick to bees’ legs!
A spider uses plants to hold up its web.
Scientists put bones together to help us learn what dinosaurs looked like.
Food Chain
Bees help plants make new plants by...
carrying pollen from flower to flower.
How Do Plants and Animals Help Each Other?
Small dinosaur bones found inside the stomach of this animal fossil tell us the animal ate meat.
Animals use plants for shelter and food
Animals Help Plants:
Skunks use a tree trunk as shelter.
Plants are the next link:
Plants give food to animals.
Meet..
Jin Meng
What Happens to Plants and Animals?
___________ are often at the top of the food chain.
People
Who is this?
Jin Meng
All living things need food to survive. Food gives them energy.
Changes in a habitat can harm living things:
Jin works at the American Museum of Natural History. He looks closely at dinosaur fossils.