Bottlebrush Education

Primary science · Years 3 and 4

Years 3–4 science: investigations with a clear purpose

Bottlebrush Education has ready-to-teach lessons for Australian primary teachers. Pupils observe, compare, record evidence and explain patterns—using everyday materials, digital models or paper, as suitable for the lesson.

What can I teach in Years 3–4?

These are examples from the live lesson catalogue. Follow each topic link to see its lessons, materials information and questions before selecting a classroom activity.

Material matters

How do we choose the right material for a job?

Years 3–4 · 6 lessons

Forces at play

How do pushes and pulls change the way things move?

Year 4 · 4 lessons

Soil secrets

Is all soil the same, and how do people use different soils?

Year 3 · 3 lessons

Waiting for rain

How do plants and animals in dry parts of Australia fit their whole life cycle around the rain?

Year 3 · 3 lessons

What does a meaningful science lesson look like?

Start with a question the children can investigate. Give them a fair comparison or a good observation, then ask them to explain using the evidence they actually collected. For example, a materials lesson can compare how different surfaces absorb water; a water lesson can compare droplets on a cold and warm cup. Do not present an assumed result as if children measured it.

How much equipment do I need?

Some topics use simple classroom items; others contain no-materials digital activities. Every topic identifies the equipment requirements. If devices are shared, use one projected activity and paper notebooks where the lesson supports that approach.

Does the program replace curriculum planning?

No. The catalogue includes Australian Curriculum v9 links and planning support, but teachers and schools should verify official current requirements and adapt for their students and local curriculum before reporting or assessment.

Browse a lesson before joining

Read the public teaching topics and check the science question, classroom materials and curriculum links. Browsing is free; a teacher account is needed to assign work to a class.

Browse all 147 lessonsHow Bottlebrush works