EASY
Lower Secondary Stage 7
IMPORTANT
Earn 100

Complete the sentence:

When a substance changes from solid to liquid, it_____.

Important Questions on Properties of Matter and Materials

MEDIUM
Lower Secondary Stage 7
IMPORTANT

In the box, draw how the particles would appear in oxygen gas. Draw at least five particles. The first particle has been drawn for you.

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MEDIUM
Lower Secondary Stage 7
IMPORTANT

Look at the diagram on the right. It shows the melting point and boiling point of bromine.

What is the state of bromine at  650C?

                                                                                                                                                                                                                     Question Image

EASY
Lower Secondary Stage 7
IMPORTANT

Look at the diagram on the right. It shows the melting point and boiling point of bromine.

What is the temperature range of liquid bromine?

                                                                                                                                                                                                         Question Image