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Leaf and the Sun

Plant Functions

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Learn about the important plant functions of photosynthesis, respiration and transpiration

Woman blowing up a balloon

Avogadro and the Ideal Gas Law

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Learn about the theory of Avogadro’s Law and the Ideal Gas Law and explore examples in everyday life.

Students designing and building

The Design & Build Process

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One way that humans apply skills and knowledge as we fulfil our desire to modify the world to suit our needs is through technological problem-solving.

Measuring radiation in Chernobyl

Radiation Effects on the Body

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This backgrounder explains the potential effects of radiation on the human body.

Scott Kelly et Terry Virts inspectent le système d’élimination du dioxyde de carbone de la SSI (Photo via Wikimedia Commons)

Carbon Dioxide on Earth and on the ISS

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Carbon dioxide is an important part of the air on Earth and in space. What is carbon dioxide? How is it measured? How can it affect us mentally and physically?

Vintage light bulb

Introduction to Energy

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Learn about energy in its different forms, in particular kinetic, potential and mechanical energy.

Weather station in Iceland

Measuring and Forecasting Weather

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Learn about different weather instruments that meteorologists use to measure weather.

Water droplets on a leaf

Needs of Plants

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Plants have specific needs - light, air, water, nutrients, and space - to survive and reproduce.

Seeds of a pomegranate fruit

Plant Reproduction

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Learn about pollination and other forms of sexual reproduction in plants. And did you know that plants can also reproduce asexually?

Scoop of potting soil

What is Soil?

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Learn about soil, soil texture and the various layers of soil.

Tree through the four seasons

Why do we have seasons?

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Learn why seasons change. Discover how they’re different in the Northern and Southern hemispheres.

Young girl brushing her teeth

Personal Hygiene: Caring for Our Teeth

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Information about cavities, plaque, tartar, gingivitis and how to keep teeth healthy.

Rendering of the human brain

Brain Architecture

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The human brain has many different parts. Each one plays a different function. But they all work together to manage complex thoughts, feelings and behaviours.

Mitosis of kidney cells © Ian P Newton & Paul L Appleton [CC BY-SA 4.0], Wikimedia Commons

What is Mitosis?

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Mitosis is an important part of cell division that helps organisms grow and repair themselves.

Adult and children looking through telescope

The Optics of Telescopes

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Learn about telescopes, how they work & why they're important to astronomers.