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Science-Changes in Matter- Formative

Last updated almost 7 years ago

7 Nsɛmmisa

Hyɛ no nsow a efi ɔkyerɛwfo no hɔ:

Focus on Reversible and Irreversible Changes

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Asemmisa {{asɛmmisaAhyɛnsode}}

1.

Watch the video. Is the change a physical or chemical change?

Physical

Chemical

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2.

Freezing water is a reversible change because ______________________________________.

it can never change state again

it can melt and go back to a liquid state.

it holds it's shape

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3.

Watch the Video. Is the change reversible?

Yes

No

Asemmisa {{asɛmmisaAhyɛnsode}}

4.

When metal rusts, it is a _______________________________ change.

physical

chemical

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5.

Watch the video. Is the change a physical or chemical change?

Physical

Chemical

Asemmisa {{asɛmmisaAhyɛnsode}}

6.

Choose ALL examples of chemical changes:

a bicylce rusting in the rain

a puddle evaporating

wood burning in a fire

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7.

Choose ALL examples of physical changes:

chopping wood

melting an ice cube

frying an egg