Science

Water and its states

An AR classroom game for Grade 2. Learners can aim with their hands at the camera or play by tapping the screen.

This set has 6 questions in an interactive multiple choice activity.

Curriculum indicatorว 2.1 ป.3/2

Play Host a classroom

A look before you play

Sample questions

A few real prompts from the game to help you choose an activity for your class.

01
Which state of water is ice?
- solid
- liquid
- gas
Read the explanation
Ice is water as a solid, and it keeps its shape.
02
Which state is water vapour?
- liquid
- gas
- solid
Read the explanation
Water vapour is water as a gas - it floats in the air and cannot be seen.
03
Why does ice melt?
- it gets colder
- there is no air
- it takes in heat
Read the explanation
Heat turns ice from a solid into a liquid.

Before you play

Game teaching guide

What children will practise

Names the three states of water, why ice melts, the boiling and freezing points of water, and evaporation from washing on the line. It matches indicator ว 2.1 ป.3/2 (how materials change when heated or cooled), a Grade 3 topic.

What's in the worksheet

6 questions, multiple choice with three options each - Ice is a solid; water vapour is a gas - Ice melts because it takes in heat - Water boils at 100 degrees and freezes at 0 degrees - Washing dries because the water evaporates (distractor: the sun burns it away)

How to use it in class

Play it after comparing ice left in the shade and in the sun, about 5 minutes, solo. Questions 4 and 5 share the options 100, 0 and 50, so children may swap them; give a memory pair: very hot is a hundred, very cold is zero. For question 6, hang a small wet cloth by the window at the start of the lesson and check it at the end. You can link it to a class and record it in the gradebook. The options in questions 4 and 5 say only 100 degrees and 0 degrees; tell children these are degrees Celsius, and that water boils at 100 at sea level.

Common sticking points

- Questions 4 and 5: swapping 100 and 0 because the options are identical. Have children say the memory pair before answering question 5. - Question 6: choosing it soaks into the cloth, since wet cloth absorbs water. Ask: if it stayed in the cloth, would the cloth be wet or dry? - Question 2: choosing liquid, having seen white steam from a kettle. Explain that real water vapour is invisible.