Science Experiments Final Test Worksheet

Science experiments lesson 30: Final test: science experiments and STEM · Set 68 · 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.True or false: a steel plate is translucent. (a) False (b) True
2. 2.⚖️ Why is it easier to open a tin lid with the handle of a spoon? (a) the lid gets softer (b) the spoon is magnetic (c) the spoon is hot (d) a lever boosts your push
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we change it (c) we measure it
4. 4.🧺 Do we need a balloon for the pendulum? (a) needed (b) not needed
5. 5.🌈 How many colours do we name in a rainbow (VIBGYOR)?
6. 6.🪴 Which of these is a job of the roots? (a) give out water vapour (b) take in water from soil (c) make seeds (d) carry water upward
7. 7.🧺 Do we need turmeric powder for the paper bridge? (a) not needed (b) needed
8. 8.🔍 Which is the odd one out? (a) washing hands afterwards (b) asking an adult first (c) reading the steps first (d) running with glassware
9. 9.True or false: south near south push apart. (a) True (b) False
10. 10.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
11. 11.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
12. 12.⚖️ Fair test — does a stronger magnet pull a paper clip through more sheets of paper? Which of these is what we measure? (a) the same table (b) the same paper clip (c) sheets it pulls through (d) the kind of paper
13. 13.True or false: a magnet is needed for the coloured flower experiment. (a) True (b) False
14. 14.⚖️ Fair test — is lifting the cup easier with one pulley or with two? True or false: how hard we must pull is kept the same. (a) True (b) False
15. 15.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
16. 16.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is the one thing we change. (a) False (b) True
17. 17.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) faster (d) the same
18. 18.🔦 Is frosted glass opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
19. 19.⚖️ Fair test — does moving the coins farther from the pencil make that side go down more? Which of these is kept the same? (a) which side goes down (b) the kind of coins (c) distance from the pencil
20. 20.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) warm water (c) two clear glasses (d) cold water
21. 21.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
22. 22.🧺 Do we need a cotton bud for the secret lemon message? (a) needed (b) not needed
23. 23.🔮 What would change if the flower stood in plain water? (a) the petals turn red (b) the flower glows (c) the stem turns blue (d) no colour change
24. 24.True or false: detergent water is an acid. (a) True (b) False
25. 25.⚖️ Fair test — does lemon juice or orange juice make darker secret writing? True or false: the ironing time is what we measure. (a) False (b) True
26. 26.True or false: moong seeds is not needed for sprouting seeds. (a) True (b) False
27. 27.🛟 Is this a safe or an unsafe habit in an experiment: wiping up spills at once? (a) safe (b) unsafe
28. 28.🧺 Three of these are needed for the secret lemon message. Which one is NOT needed? (a) white paper (b) a magnet (c) lemon juice (d) a cotton bud
29. 29.🧺 Do we need a battery cell for the periscope? (a) needed (b) not needed
30. 30.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) a clear glass of water (c) a magnet (d) bright sunlight
31. 31.🌱 Which of these is needed for a seed to sprout? (a) sugar (b) sunlight (c) air (d) soil
32. 32.🔍 Which is the odd one out? (a) a plastic ruler (b) a piece of foil (c) a steel spoon (d) a cotton thread
33. 33.⚖️ Fair test — which paper shape holds the most coins? True or false: where coins are placed is the one thing we change. (a) False (b) True
34. 34.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it flowers more (b) it turns blue (c) it wilts and droops (d) it grows faster
35. 35.⚖️ Fair test — does a longer string make the pendulum swing more slowly? What do we do with “the same hook”? (a) we keep it the same (b) we measure it (c) we change it
36. 36.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) tiny paper bits (c) a plastic comb (d) a magnet
37. 37.True or false: turmeric powder is needed for the water rainbow. (a) True (b) False
38. 38.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar in warm water (d) sugar left unstirred
39. 39.True or false: a strip of paper is needed for the paper helicopter. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) lemon juice (b) vinegar (c) soap solution (d) sugar water

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