Page 115 - ACTIVE SCIENCE 4 TOC

F. Long Answer Questions:
1. Write the properties of solids and liquids.

2. How does matter change its state?
3. What are the similarities between gases and liquids?

4. How do solids dissolve in water? Explain with an activity.

Think Hard

If we put gas in a liquid, will the liquid dissolve it or not?

Project Work

Cut and paste atleast three solids, liquids and gases in your scrapbook.

Life Skills Activity

To what extent do chocolates, butter, aluminium and cold wax melt? Which objects need
high temperature to change their state?

Research and Development

If the atmospheric temperature rises, what will happen? Perform the activity with a
balloon and find the answer.

Field Trip

Visit a dairy and a grocery shop. Try to look up at the space taken by solid grocery items

and the milk contained in packets or drums.

Net Work

• To study the experiment on melting of a chocolate, log on to http://www.sciencekids.co.nz/
experiments/chocolate.html

• To find some more facts on solid, liquid and gas, visit http://www.squizzes.com/solids-
liquids-gases/

122 Active Science-4