☐ Not Sure Question 7. A pie that heats up in a gas-fired oven can be explained by air molecules in the oven colliding with pie molecules. (1 mark) ✓True ☐ False ☐ I Don’t Understand ☐ Not Sure Representational Challenge Series 1 Scientists use particle ideas to explain what they observe about matter. The task below asks you to imagine and draw particles that will explain the property of the object that is given. For example, the first challenge asks you to represent how a lump of plasticine can hold its shape. There are three examples that students have drawn below. We need to evaluate each representation in terms of whether they can explain that the plasticene is made of particles and that it can hold its shape. This will mean that the representation needs to show particles as well as representing that the particles are connected in some way. Representation A shows particles but doesn't show them connected in any way. Therefore, this is not a useful representation. Representations B & C show particles as well as being connected. Therefore, each of these representations are useful in explaining that a lump of plasticene is made of particles that holds its shape. Particle representations to show that a lump of plasticene holds its shape In your workbooks, use particle ideas to represent the property of the object that is given. Once you have completed your drawings take a photo and upload them below. Respond to the following representational challenges that ask you to incorporate particle ideas. A lump of plasticine holds its shape. A lump of plasticine can be changed into a different shape. A piece of chalk can’t change shape it breaks easily (brittle). A rubber band can stretch and return to its original shape. Red cordial and water mix easily. An iron cube is much heavier than an aluminium cube of the same size. Temperature Role Play
☐ Not Sure Question 7. A pie that heats up in a gas-fired oven can be explained by air molecules in the oven colliding with pie molecules. (1 mark) ✓True ☐ False ☐ I Don’t Understand ☐ Not Sure Representational Challenge Series 1 Scientists use particle ideas to explain what they observe about matter. The task below asks you to imagine and draw particles that will explain the property of the object that is given. For example, the first challenge asks you to represent how a lump of plasticine can hold its shape. There are three examples that students have drawn below. We need to evaluate each representation in terms of whether they can explain that the plasticene is made of particles and that it can hold its shape. This will mean that the representation needs to show particles as well as representing that the particles are connected in some way. Representation A shows particles but doesn't show them connected in any way. Therefore, this is not a useful representation. Representations B & C show particles as well as being connected. Therefore, each of these representations are useful in explaining that a lump of plasticene is made of particles that holds its shape. Particle representations to show that a lump of plasticene holds its shape In your workbooks, use particle ideas to represent the property of the object that is given. Once you have completed your drawings take a photo and upload them below. Respond to the following representational challenges that ask you to incorporate particle ideas. A lump of plasticine holds its shape. A lump of plasticine can be changed into a different shape. A piece of chalk can’t change shape it breaks easily (brittle). A rubber band can stretch and return to its original shape. Red cordial and water mix easily. An iron cube is much heavier than an aluminium cube of the same size. Temperature Role Play