WALA: BOILING

WALA: BOILING

L.O: to know that the boiling point of water is 100 degress celcius and the melting point is 0 degress celcius.

Review

Review the previous lesson by asking oral questions.

Discuss

What happens when water boils?

Why do you think that happens?

Watch a video of water boiling.

https://www.youtube.com/watch?v=0xcxumccf8Q

What did you observe as the water was getting hotter?

How does boiling water looks like?

Explanation

# If we heat water enough it will boil.

we can show boiling happens like this.

liquid + heat -> gas

# When water boils it changes from a liquid to a gas called steam.

# Particles of liquid water gain energy when they are heated and change into a gas.

# The boiling point of pure water is 100 degrees Celsius.

Conclusion

Do the activity shown and answer questions 1- 4.

Learners book page 47