A C Sahgal and Mukul Sahgal Solutions for Exercise 3: FOR FORMATIVE AND SUMMATIVE ASSESSMENT

Classification is

Classification is useful because

Which property is common to all matter?

The state of matter that has a definite shape but no definite volume is

A substance exists in solid state because

Name one natural material we get from trees.

Name one gas that is soluble in water.

CROSSWORD: Follow the clues and solve the terms you have learnt.

ACROSS:

1. Smallest particle of a compound $\left(8\right)$

4. A state of matter $\left(3\right)$

6. A yellow coloured metal $\left(4\right)$

9. To group together things with similar properties $\left(14\right)$

DOWN:

2. Gas we breathe in $\left(6\right)$

3. We call iron, gold or hydrogen this $\left(7\right)$

5. Smallest particle of an element $\left(4\right)$

7. Another state of matter $\left(5\right)$

8. Scientist who coined the term atom $\left(6\right)$