Evolution I can identify how plants are adapted to their - - PowerPoint PPT Presentation

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Grammarsaurus

Year 6 Science

Evolution

I can identify how plants are adapted to their environment.

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Thinking Time!

What do you already know about evolution, adaptation and inheritance?

On your pre-assessment sheet, complete a spider diagram around the 3 words. Can you make any links? Can you think

• f any synonyms or antonyms?

Don’t worry if you’re not sure what the words mean. We will be learning about them throughout our topic. We will add to this activity regularly to show what you have learnt.

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Adaptation

Our first lesson will be focusing on adaptation. Lots of animals and plants have adapted to their environment. Discuss with your partner before we discuss as a class.

Do you know what adapted means?

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Adaptation

Adaptation is when a plant or animal has changed in some way, over a long period of time, to be better suited to the environment in which they live.

Camels have long eyelashes to protect their eyes from the sand. They also have large, wide, flat feet to help them walk on the sand without sinking.

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Adaptation

Some plants have adaptations too.

Water lilies grow on the surface of ponds. They have large leaves that help them to float on top of the water. The large leaves also mean that they absorb as much sunlight as they can. The leaves have a waxy layer which helps them stay dry and prevent them from sinking.

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Adaptation

Some plants have adaptations too.

Cactuses grow in the desert which is hot and sandy.

• They have spines instead of leaves to pro-

tect them from being eaten by predators.

• They have large, thick stems which allow

them to store water until they need it.

• They have a thick, waxy skin which helps

reduce the amount of water they lose.

• They have shallow, widespread roots which

allows fast absorption of water when it rains. Cacti grow in the desert which is hot and sandy.

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Independent Activity

Now, complete your worksheet to show what you have learnt about cactuses and their ad- aptations. Now, complete your worksheet to show what you have learnt about cacti and their adaptations.

Challenge

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Dandelions have an adaptation that means their seeds are blown away in the wind. Why is this a good adaptation?