1. Put the statements about the human life cycle into the correct order:
A: Puberty :B Birth C: Adolescence D: Childhood
E: Adult

2. A plant is an example of a producer.
Producers are living organisms that:

3. Yeast, which is used to make bread, is a living organism
TRUE or FALSE

4. Name the waste gas that we breath out
(produced during respiration)

5. Marie Curie is best known for her work involving

6. If you went to the moon what would happen to your weight?

7. About 20cm of magnesium ribbon is chopped up into 1cm lengths and placed in a crucible which is then weighed along with its lid.

The crucible is heated strongly and the lid gently raised avery few seconds.

When the reaction is over a white ash could be seen in the crucible.
The crucible + ash + lid are all re-weighed

These are his results:

• Mass of empty crucible + lid  = 51.2g
• Mass of crucible + lid + magnesium (before heating) = 54.3g
• Mass of crucible + lid + contents (after heating) = 54.7g

 

What is the name of the white ash that remains in the crucible after the experiment 

8. A  BCThe blue circles in these diagrams repesent the particles in a substance

Which diagram represents a gas?

9. Which of the substances listed below is the odd one out?

10. A change of electrical energy into kinetic (speed) energy could be produced by