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  1. Keeping Healthy

    The lungs, the heart, and how to keep fit and healthy with good diet and exercise.

  2. Teeth and Eating

    Looking at lots of different teeth in lots of different mouths.

  3. Earth, Sun and Moon

    The Earth seen from space, the moon and its phases, and the sun and its energy.

  4. How We See Things

    Seeing in the dark, and how road signs and reflective jackets work.

  5. Changing Sounds

    How the sound a piece of string makes when it's plucked varies.

  6. Forces in Action

    Science for seven- to nine-year-olds. Galileo's experiment at the Leaning Tower of Pisa.

  7. Changing Circuits

    Examples of circuits, such as in traffic lights, and the beginnings of circuit diagrams.

  8. Reversible and Irreversible Change

    Solubility and solutions, separation by filtration and distillation, and how rust works.

  9. Changing State

    What makes water taste different in different places?

  10. Gases around Us

    Collecting gas from pondweed and weighing fizzy lemonade.

  11. Micro Organisms

    What bacteria are, and what they do. Plus a look at your skin as a habitat.

  12. Interdependence and Adaptation

    A look at how plants and animals adapt to their environments.

  13. Life Cycles

    From plant pollination and seed dispersal to gestation periods and the birth of a foal.

  14. Light and Shadows

    The possibility of having more than one shadow, and how light can make you look scary.

  15. Friction

    From bobsleighs to dragsters, and from gannets to cyclists, friction is a force to behold.

  16. Magnets and Springs

    Things that use springs, magnets that show where you are, and magnets that pick up cars.

  17. Circuits and Conductors

    A look at what a plastic duck and a wooden spoon have in common.

  18. Solids and Liquids

    Snow and ice melt into water. Sand and metals melt. How are solids in liquids separated?

  19. Rocks and Soils

    From the sides of a mine tunnel to the soil beneath people's feet, rock is everywhere.

  20. Keeping Warm

    Seeing, using and feeling temperature.

  21. Characteristics of Materials

    Trying to make a bicycle from rubber, and testing fabrics.

  22. Habitats

    From large woodland areas to tiny seaside rock pools, habitats are everywhere.

  23. Helping Plants Grow Well

    A look at how seeds become plants and then thrive in different conditions.

  24. Moving and Growing

    Science for seven- to nine-year-olds.