Science Experiments Final Test Worksheet

Science experiments lesson 30: Final test: science experiments and STEM · Set 119 · 40 questions

What you do (Find the experiment, use the idea): 1. Read the question and find its experiment. 2. Use that experiment’s science idea. 3. For a fair test: one thing changed, the rest kept the same, one thing measured. 4. For safety: an adult helps, nothing goes in the mouth, no heat, sharp tools or plug points for children.

1. 1.🧺 Three of these are needed for the magnet test. Which one is NOT needed? (a) a mirror (b) test objects (c) a bar magnet (d) a tray
2. 2.⚙️ Which of these is an inclined plane? (a) a see-saw (b) a crowbar (c) a slide (d) a tap handle
3. 3.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) yeast (c) white paper strips (d) a magnet
4. 4.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) cotton wool (c) a teaspoon (d) warm water
5. 5.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns brighter (b) it floats away (c) the rainbow fades (d) it turns all red
6. 6.🧺 Do we need a mirror for the static comb? (a) needed (b) not needed
7. 7.True or false: yeast is needed for the water cycle bowl. (a) False (b) True
8. 8.⚖️ Fair test — does a stronger magnet pull a paper clip through more sheets of paper? What do we do with “the magnet used”? (a) we change it (b) we measure it (c) we keep it the same
9. 9.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a rubber band (b) a clear plastic bag (c) a magnet (d) a potted plant
10. 10.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: distance to the paper is kept the same. (a) False (b) True
11. 11.⚖️ Fair test — do longer blades make the paper helicopter fall more slowly? True or false: the drop height is the one thing we change. (a) True (b) False
12. 12.True or false: salt is something yeast needs. (a) False (b) True
13. 13.🧺 Which of these is not needed for the secret lemon message? (a) white paper (b) a cotton bud (c) lemon juice (d) a balloon
14. 14.🔍 Which is the odd one out? (a) a ping-pong ball (b) a coin (c) air (d) cooking oil
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) False (b) True
16. 16.🧺 Which of these is needed for making butter? (a) a balloon (b) fresh cream (c) a battery cell (d) yeast
17. 17.⚖️ Fair test — does a longer string make the pendulum swing more slowly? True or false: the weight of the bob is what we measure. (a) True (b) False
18. 18.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) the youngest child (d) a grown-up
19. 19.🛟 Is this a safe or an unsafe habit in an experiment: wiping up spills at once? (a) unsafe (b) safe
20. 20.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
21. 21.🫗 How do we separate tea leaves from tea? (a) handpicking (b) winnowing (c) sieving (d) filtering
22. 22.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
23. 23.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar left unstirred (c) sugar in icy water (d) a big sugar cube
24. 24.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same hair”? (a) we measure it (b) we keep it the same (c) we change it
25. 25.True or false: an empty thread reel is needed for the thread-reel pulley. (a) True (b) False
26. 26.True or false: vinegar is something yeast does not need. (a) False (b) True
27. 27.🔮 A flat sheet and a crumpled ball of the same paper drop together. Which lands first? (a) neither of them (b) the flat sheet (c) the crumpled ball (d) a sheet of glass
28. 28.🔍 Which is the odd one out? (a) an ice cube (b) a pebble (c) a ping-pong ball (d) cooking oil
29. 29.🔍 Which is the odd one out? (a) an iron screw (b) a paper sheet (c) a plastic ruler (d) an aluminium can
30. 30.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? Which of these is the one thing we change? (a) the way we turn it (b) how full the glass is (c) the same card (d) the same glass
31. 31.🫗 How do we separate sugar from sugar water? (a) filtering (b) handpicking (c) winnowing (d) evaporating
32. 32.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) much more water (b) it fills with soil (c) much less water (d) exactly the same
33. 33.True or false: carry water upward is a job of the stem. (a) True (b) False
34. 34.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) a battery cell (c) turmeric powder (d) water
35. 35.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
36. 36.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
37. 37.⚖️ Fair test — does moving the coins farther from the pencil make that side go down more? Which of these is what we measure? (a) which side goes down (b) the same ruler (c) distance from the pencil (d) the number of coins
38. 38.📘 What do we call plants giving out water vapour from their leaves? (a) digestion (b) germination (c) reflection (d) transpiration
39. 39.True or false: north near south push apart. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) soil (b) air (c) salt (d) sunlight

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