Science Experiments Final Test Worksheet

Science experiments lesson 30: Final test: science experiments and STEM · Set 10 · 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.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) air from the balloon (d) the swimmer
2. 2.🔭 Which of these reflects light well? (a) black cloth (b) dark soil (c) a rough wooden board (d) a shiny steel plate
3. 3.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: time for colour to show is kept the same. (a) True (b) False
4. 4.True or false: make food in sunlight is a job of the leaves. (a) False (b) True
5. 5.🥄 Which of these dissolves faster? (a) sugar stirred well (b) sugar in icy water (c) a big sugar cube (d) sugar left unstirred
6. 6.🧺 Three of these are needed for the magnet test. Which one is NOT needed? (a) a tray (b) a balloon (c) test objects (d) a results chart
7. 7.⚖️ Fair test — is lifting the cup easier with one pulley or with two? True or false: the same string is what we measure. (a) False (b) True
8. 8.🫗 How do we separate salt from sea water? (a) evaporating (b) winnowing (c) filtering (d) handpicking
9. 9.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
10. 10.🪴 Which of these is a job of the stem? (a) make food in sunlight (b) give out water vapour (c) make seeds (d) carry water upward
11. 11.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a battery cell (b) a potted plant (c) a clear plastic bag (d) a rubber band
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the same funnel (c) the same glass (d) the same muddy water
13. 13.🪴 Which of these is a job of the roots? (a) make food in sunlight (b) make seeds (c) take in water from soil (d) give out water vapour
14. 14.🔮 Predict: you make more, closer zigzag folds. The bridge holds ___ coins. (a) the same number of (b) zero (c) fewer (d) more
15. 15.🌈 How many colours do we name in a rainbow (VIBGYOR)?
16. 16.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) honey (c) a tall clear glass (d) a balloon
17. 17.🧺 Which of these is not needed for the magnet test? (a) test objects (b) a tray (c) a bar magnet (d) a balloon
18. 18.True or false: moong seeds is needed for sprouting seeds. (a) True (b) False
19. 19.🧺 Three of these are needed for making butter. Which one is NOT needed? (a) a bowl (b) a timer (c) fresh cream (d) a balloon
20. 20.🧺 Which of these is needed for the card-on-a-glass trick? (a) a magnet (b) a mirror (c) a balloon (d) a towel
21. 21.🧺 Do we need a dropper or spoon for the turmeric test? (a) not needed (b) needed
22. 22.🥚 Why is an egg hard to crush when you press on its two ends? (a) it is made of steel (b) it is magnetic (c) it is very hot (d) its curved arch shape
23. 23.⚖️ Fair test — does a bowl in the sun make more drops than a bowl in the shade? What do we do with “the amount of water”? (a) we keep it the same (b) we measure it (c) we change it
24. 24.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) baking soda water (d) vinegar
25. 25.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is kept the same? (a) days to see crystals (b) the amount of salt (c) sunny or shady place
26. 26.🔍 Which is the odd one out? (a) an iron nail (b) a glass marble (c) a pebble (d) a ping-pong ball
27. 27.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) much less water (b) it fills with soil (c) much more water (d) exactly the same
28. 28.True or false: a steel spoon sinks in water. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) a coin (b) cooking oil (c) a ping-pong ball (d) a cork
30. 30.⚖️ Fair test — which kind of ball bounces highest? True or false: the kind of ball is what we measure. (a) False (b) True
31. 31.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is what we measure? (a) the same white paper (b) the amount of water (c) brightness of rainbow (d) the time of day
32. 32.🧺 Three of these are needed for the ruler lever. Which one is NOT needed? (a) a flat table (b) turmeric powder (c) coins of one kind (d) a 30 cm ruler
33. 33.🔍 Which is the odd one out? (a) dissolving salt (b) milk turning to curd (c) baking a cake (d) rusting iron
34. 34.⚖️ Fair test — which paper shape holds the most coins? What do we do with “the kind of coins”? (a) we keep it the same (b) we change it (c) we measure it
35. 35.🧺 Do we need a battery cell for the pendulum? (a) not needed (b) needed
36. 36.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a mirror (c) a white flower (d) yeast
37. 37.🧺 Do we need a battery cell for the water cycle bowl? (a) not needed (b) needed
38. 38.True or false: sand does not dissolve in water. (a) False (b) True
39. 39.🧺 Which of these is needed for the dissolving test? (a) honey (b) a comb (c) a magnet (d) warm water
40. 40.True or false: yeast is not needed for making butter. (a) True (b) False

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