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Year 3 in England

2nd grade states of matter

7 2nd grade states of matter skills, each with a worked example, free practice that checks every answer, and a printable worksheet. Start with a mixed review, or jump to the skill you need.

Mixed review

Ten questions drawn from every skill below.

Print a review worksheetRiddle puzzle on screenBingo

Solids, liquids and gases

CCSS NGSS.2-PS1-1England: KS2 Y4 States of matter

Example

Is the air in a balloon a solid, a liquid or a gas?

  1. Gases spread out to fill any container and can be squashed.
  2. So the answer is: gas

Answer: gas

Leads to: Melting, freezing, evaporating and condensing, The particle model, Solids keep their shape; liquids pour and take the container's shape

Print a worksheet✏️ Write on screenFlashcards

Melting, freezing, evaporating and condensing

CCSS NGSS.2-PS1-4CCSS NGSS.5-PS1-1England: KS2 Y4 States of matter

Example

Which change of state is this: melted wax going hard again?

  1. Freezing is a liquid turning into a solid when it is cooled.
  2. So the answer is: freezing

Answer: freezing

Builds on: Solids, liquids and gases

Leads to: Temperatures of water changing state, The water cycle, Heating and cooling: can the change be undone?, What makes water evaporate faster?

Print a worksheet✏️ Write on screenFlashcards

Solids keep their shape; liquids pour and take the container's shape

CCSS NGSS.2-PS1-1England: KS2 Y4 States of matter

Example

Is this a solid or a liquid: seawater?

  1. A liquid flows and takes the shape of its container.
  2. So the answer is: liquid

Answer: liquid

Builds on: Solids, liquids and gases

Print a worksheet✏️ Write on screenFlashcards

Heating and cooling: can the change be undone?

CCSS NGSS.2-PS1-4England: KS1 Y2 Uses of everyday materialsEngland: KS2 Y5 Properties and changes of materials

Example

Can this change be undone: frying an egg?

  1. Cooking and burning make new materials that cannot be turned back.
  2. So the answer is: cannot change back

Answer: cannot change back

Builds on: Melting, freezing, evaporating and condensing

Leads to: What happens when we heat it?, What happens when we cool it?

Print a worksheet✏️ Write on screenFlashcards

What happens when we heat it?

CCSS NGSS.2-PS1-4England: KS1 Y2 Uses of everyday materialsEngland: KS2 Y4 States of matter

Example

What happens when you heat this: butter in a hot pan?

  1. So the answer is: melts into a liquid

Answer: melts into a liquid

Builds on: Heating and cooling: can the change be undone?

Leads to: Ice melting race: compare melting times

Print a worksheet✏️ Write on screenFlashcards

What happens when we cool it?

CCSS NGSS.2-PS1-4England: KS1 Y2 Uses of everyday materialsEngland: KS2 Y4 States of matter

Example

What happens when this cools down: hot candle wax left to cool?

  1. So the answer is: turns back into solid wax

Answer: turns back into solid wax

Builds on: Heating and cooling: can the change be undone?

Print a worksheet✏️ Write on screenFlashcards

Ice melting race: compare melting times

CCSS NGSS.2-PS1-4CCSS NGSS.K-PS3-1CCSS NGSS.SEP 4England: KS2 Y4 States of matterEngland: KS1 Working scientifically

Example

How could you keep an ice cube frozen longest on a picnic?

  1. Shade, insulation and a cool box all slow the warming.
  2. So the answer is: Wrap it in a cloth and keep it in a cool box in the shade.

Answer: Wrap it in a cloth and keep it in a cool box in the shade.

Builds on: What happens when we heat it?

Print a worksheet✏️ Write on screenFlashcards

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2nd grade States of matter: Practice and Worksheets