Science

Changes in matter

An AR classroom game for Grade 5. Learners can aim with their hands at the camera or play by tapping the screen.

This set has 4 rounds in an interactive sorting activity.

Curriculum indicatorว 2.1 ป.5/3

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
Sort the changes into groups.
Sort into
- physical change
- chemical change
- ice melts
- paper burning
- tearing paper
- iron rusting
Read the explanation
A physical change can be reversed; a chemical change makes a new substance.
02
Sort the substances by whether they dissolve.
Sort into
- dissolves in water
- does not dissolve
- salt
- sand
- sugar
- oil
Read the explanation
Some substances dissolve in water and some do not.
03
Sort the separation methods into groups.
Sort into
- use filtering
- use evaporation
- separating sand from water
- separating salt from brine
- separating leaves from water
- making salt in salt pans
Read the explanation
Choose the method to suit the properties of what is mixed.

Before you play

Game teaching guide

What children will practise

Sorts changes in matter: physical or chemical, dissolves or not, separating by filtering or evaporation, and acidic or basic substances. Fits ว 2.1 ป.5/2 (dissolving), ป.5/3 (chemical change) and ว 2.1 ป.6/1 (separating mixtures).

What's in the worksheet

4 questions, a sorting game with four items each - Ice melting and tearing paper are physical; paper burning and iron rusting are chemical - Salt and sugar dissolve; sand and oil do not - Separating sand or leaves from water uses filtering; salt from brine and salt pans use evaporation - Lime juice and vinegar are acidic; soap and baking soda are basic

How to use it in class

Use it after dissolving and separating experiments, about 6-8 minutes in teams. On question 1, be careful with the game's explanation that physical changes are reversible, since torn paper cannot be put back; use the test is a new substance formed? instead. For question 4, never let children taste substances to test them; use litmus paper or butterfly-pea flower water. You can link it to a class and record it in the gradebook.

Common sticking points

- Question 1: calling tearing paper chemical, having learnt that physical changes must be reversible. Change the test to whether a new substance forms. - Question 2: saying oil dissolves because it mixes when shaken. Let it stand and watch it separate into layers. - Question 4: calling soap an acid, not knowing it is a base. Test it with butterfly-pea water to see the colour change.