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Matter Changes Projects

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Matter Changes Projects

Zach, Isla and Hudson are preparing a school play about a mysterious melting treasure. They want to investigate how heating and cooling can change matter, then present their findings. Read the project brief and complete the planning and science tasks. Use safe materials; do not taste or handle hot substances.

Plan the investigation

The team will compare how quickly equal-sized ice cubes melt in different places. They will use a timer and observe without touching the ice.

1.Which change will the team investigate, and what type of change is it?
2.The team places one ice cube in a sunny spot and an equal-sized cube in a shaded spot. Predict which will melt first and explain why.
3.Choose the best factor to change while testing the prediction.
  • The location of each ice cube
  • The size of each ice cube and its location
  • The type of timer used for each cube
4.For this test, name the factor the team changes, the factor they measure, and one factor they keep the same.
5.Select the set of equipment that best helps the team compare melting fairly.
  • Two equal-sized ice cubes, two plates and a timer
  • One ice cube, a saucepan and a tasting spoon
  • Different-sized ice cubes and a ruler

Observe and explain

Imagine the team records that the sunny-spot cube melts in 12 minutes and the shaded-spot cube melts in 27 minutes. They repeat the test and get similar results.

6.How much longer did the shaded-spot ice cube take to melt than the sunny-spot cube?
7.Describe what happens to the particles when solid ice melts into liquid water. Use the words solid, liquid and energy.
8.True or false: When ice melts, a new substance is made.
TrueFalse
9.A stage prop maker also warms chocolate until it melts. Is melting chocolate more like melting ice or like baking a cake? Explain your choice.
10.Write one clear conclusion the team could share in the play’s science scene. Include a result and what it suggests.

2 printable pages

  • Matter Changes Projects, page 1 of 2: Plan the investigation

    Page 1

  • Matter Changes Projects, page 2 of 2: Observe and explain

    Page 2

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