1. The diagram below shows a glass and its contents. Use it to answer question.

Which BEST describes what is in the glass?

2. Which method would be BEST for separating a mixture of black pepper and water?

3. The information below outlines the observations a student made while looking at a liquid. Use the information to answer question.

The liquid was white and no particles were seen. Light was also unable to pass through the liquid. When it was left to stand for a few minutes the particles did not settle to the bottom.

Which type of liquid did the student observe?

4. Which would be BEST for separating a mixture of water, sawdust and paper clips?

5. The statements below describe how the model works. Read the statements then observe the model and use them to answer item.

• Structures II and V are When the strings are heated they extend and when they cool down they shrink.
• The extending and shrinking of the strings move structure III forward and backward
• Structure III moves about structure IV
• Structure I does not move

What names could be given to structures II, III and IV?

6. Read the outline for an investigation below then use it to answer question.

A student conducted an investigation in which he used a drum stick to hit the surface of different metal discs. Each disc was of a different thickness. Each time he hit the disc he used the same force. The pitch of the sound was noted each time the disc was hit.

Which was the LIKELY hypothesis the student was testing?

7. A student conducted an investigation in which she gathered two different brands of paper towels called Brand A and Brand B. She wanted to find out which brand was most effective at absorbing spilled juice.

Which could be a possible hypothesis for the investigation?

8. A student conducted an investigation in which she gathered two different brands of paper towels called Brand A and Brand B. She wanted to find out which brand was most effective at absorbing spilled juice.

Which factor in the investigation should be controlled?

9. Roy wanted to investigate if the thickness of a rug affected the loudness of the sound made by an object that crashes into it. Each rug (Rug A, Rug B, and Rug C) was of a different thickness. The diagrams below show Roy’s investigation. Use them to answer question.

Which should Roy do to make the investigation a fair test?

10. Read the statement and then observe the diagram below. Use the information to answer questions.

A child wants to see how the distance of a light source from an object affects the height of the shadow it casts. The diagram below shows what the child did.

Which would be a SUITABLE table to record the results from the investigation?

11. Read the statement and then observe the diagram below. Use the information to answer questions.

A child wants to see how the distance of a light source from an object affects the height of the shadow it casts. The diagram below shows what the child did.

Which should the child do to make sure the results of the investigation are accurate?

12. Read the statement and then observe the diagram below. Use the information to answer questions.

A child wants to see how the distance of a light source from an object affects the height of the shadow it casts. The diagram below shows what the child did.

Which should the child do to ensure the test is a fair test?

13. A student conducted an investigation in which he shone a light through three different liquids (Liquid X, Liquid Y, and Liquid Z). The diagram shows the results of the investigation. Observe the diagram below and use it to answer question.

What was the student trying to find out?

14. A student wanted to find out which of three soil samples drains water quickest. Below are the steps the student followed, along with the investigation setup. Note that the same setup was used for each soil sample. Use the information to answer question.

How could step 3 be changed to allow the investigation to be a fair test?

15. A child conducted an investigation in which he hit three different cymbals of different diameters. He ensured that he hit each cymbal with the same force using the same tool. The pitch of the sound made by each cymbal was noted.

Which would be a SUITABLE table to record the findings of the investigation?

16. The graph below shows average global temperatures and jellyfish numbers across several years. Use the information to answer question.

Which statement is TRUE?

17. The pie chart below shows the causes of obesity. Use it to answer question.

Which contributes the GREATEST to obesity?

18. Which table BEST represents the information in the pie chart?

19. The table below shows how the population of two organisms changes at different depths in a pond. Use the information to answer question.

At which depth was the population of Organism B the LOWEST?

20. Which is a POSSIBLE conclusion based on the information in the table?

21. Which graph BEST displays the information in the table?

22. The table below shows some observations made while viewing four different materials. Use the information to answer question.

Which material would be BEST suited for making rain coats?

23. The table below shows the results of an investigation. Use it to answer question.

How would the diameter change if the flashlight was moved 5 m from the wall?

24. The Table below shows observations made at the end of an investigation. Use the information to answer question.

Which is supported by the observation?

25. The diagram below shows how the temperature changes across different locations. Use it to answer question.

What is causing the temperature changes seen in the city when compared to the residential areas?