Science

Photosynthesis

An AR classroom game for Grade 4. 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 1.2 ป.4/1

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
Where does a plant make its food?
- leaves
- roots
- flower
Read the explanation
Leaves contain chlorophyll, the green substance that captures light to make food.
02
What is the green substance in leaves called?
- leaf sap
- chlorophyll
- cellulose
Read the explanation
Chlorophyll is the green substance that makes leaves green and captures light.
03
Which gas does a plant use to make food?
- oxygen in the air
- carbon monoxide
- carbon dioxide
Read the explanation
A plant takes carbon dioxide in through its stomata to make food.

Before you play

Game teaching guide

What children will practise

Photosynthesis: the leaf as the food factory, chlorophyll, the gas used and the gas given off, when plants can make food, and forests' role for the air. Matches ว 1.2 ป.4/1, describing the job of the leaf in flowering plants.

What's in the worksheet

6 questions, multiple choice with three options each - Plants make food in the leaves; the green substance is chlorophyll - Plants use carbon dioxide (distractor: carbon monoxide) - Plants give off oxygen and make food when there is light - Forests take in carbon dioxide and give out oxygen

How to use it in class

Use it after covering part of a leaf with foil, or watching gas bubbles rise from water weed, about 5 minutes, solo. In question 3, carbon dioxide and carbon monoxide look very alike, so write both on the board before playing. Question 6 leads into planting trees at school. You can link it to a class and record it in the gradebook.

Common sticking points

- Question 3: choosing carbon monoxide because the name is so similar. Point out that ได (di) means two. - Question 6: choosing take in oxygen and give out carbon dioxide, confusing it with human breathing. Draw in and out arrows for a person and a tree side by side. - Question 5: choosing equally at all times, thinking plants work day and night. Separate them: plants breathe all the time but make food only in light.