Living Systems: Understandings of the living world, Earth, and space are deepened by investigating natural systems and their interactions.

Astronauts can experience bone loss in space. To understand why, you need to know a bit about how bones are formed and maintained in your body.

Students develop and apply the skills of observing, comparing & contrasting, and communicating as they explore life cycles of familiar plants.

15 images of some products created by humans and are made from plants such as shelter, food and clothing

12 images of some major parts of plants such as stems, roots, flowers and leaves

6 images of some seeds which are the fertilized part of a plant used for germinating new plants such as fennel, kiwis and pumpkins

15 images of some shapes and colours of plant leaves such as shamrocks, purple beech tree leaves and Japanese Maple tree leaves.

Do an experiment with celery to learn about the structures that help plants take up water.

What is a reflex? Test your reaction time and find out why reflexes are important in this challenge activity.

Get active in this activity and explore the impact of exercise on your heart rate. Ready, set, GO!

Learn how to measure lung capacity and about the factors that can affect our lung capacity in this hands on activity.

Humidity is an important part of life on Earth and life in space. This backgrounder explains what humidity is, how it is measured and how it affects us both mentally and physically.

8 images of some flowerheads such as roses and water lilies whose outer petals are longer than the petals in the centre of the flower

3 images of some asymmetrical flowerheads such as an iris and an Orchis Sima or Monkey Orchid

7 images of some symmetrical flowerheads such as asters and sunflowers whose petals radiate from the centre of the flower

5 images of some flowerheads such as petunias and lilies that start as a narrow base and widen to an open shape