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Carbon Capture: Artificial Trees
Artificial trees: what are they? How do they work? And how could they help to prevent climate change in the future? Human Geography - A Changing World - Learning Points. The rate of climate change is increasing because of the increasing...
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Abiotic Factors in Ecosystems
What happens when non-living factors in an ecosystem are altered, such as rainfall or air quality? Biology - Ecosystems - Learning Points. An ecosystem is a living system interacting with its physical habitat. Changes in biotic and...
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What Plants Need to Grow
Plants produce oxygen and provide our food, but what do they need to live? Learn why nitrates, phosphates, potassium and magnesium are vital for plant health. Biology - Plants - Learning Points. Understanding how plants grow ensures we...
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Carnivorous Plants
Not all plants exist simply on sunlight and water. Carnivorous plants eat meat. Discover how some of these carnivores trap and kill their prey. Biology - Plants - Learning Points. Some plants, often in harsh conditions, have adapted to...
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Bioaccumulation in Food Chains
Investigating why peregrine falcon populations are threatened by pollution from industry thousands of kilometres away. Biology - Ecosystems - Learning Points. The peregrine falcon lives remotely but is affected by man-made chemicals....
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Parasitic Plants
Different species of parasitic plants steal nutrients from host species in order to survive. Sometimes this ends in the death of the host. Biology - Plants - Learning Points. Parasitic plants derive some or all of their nutrients from...
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Invading Plant Species
Ecosystems are finely balanced environments. The introduction of 'invader' plant species can be disastrous for biodiversity. Biology - Ecosystems - Learning Points. Protecting diverse delicate habitats from invading species is difficult....
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Defensive Plants - Plant Protections
Plants have developed an array of chemical, mechanical and mimicry methods to fight off predators, meaning that they are not as defenceless as they seem. Biology - Plants - Learning Points. Plants have evolved defence mechanisms to ward...
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Asexual Reproduction in Plants
Some plants don't need both a male and female to reproduce - they can do it alone. Which plants can do this and how do they manage it? Biology - Plants - Learning Points. Plants use a variety of methods to reproduce. Methods include...
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Deforestation
Discover how the destruction of the rainforest impacts ecosystems, and begins a cycle that contributes to global warming. Earth Science - Human Impacts - Learning Points. Forests are home to 70% of Earth's land animals and plants....
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The Nitrogen Cycle
Nitrogen is integral to the production of protein and DNA. Discover how it is present on Earth in a constant cycle, and how nitrogen from the air enters the food chain. Biology - Ecosystems - Learning Points. The nitrogen cycle describes...
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Adaptation - Survival Traits
Examples of physical and behavioural adaptations which allow plants and animals to survive in some of the most challenging habitats on Earth. Biology - Adaptation And Evolution - Learning Points. Animals and plants survive in diverse...
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Fossil Evidence
Studying fossil evidence reveals how organisms have changed over time. What are fossils and how are they formed? Biology - Adaptation And Evolution - Learning Points. Fossil hunters are called paleontologists. Paleontologists study...
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Plants in Extreme Environments
To survive, plants have developed adaptations to regulate temperature and water, and maximise the capture of sunlight. Some plants have even evolved to survive in extreme environments of hot deserts and Polar regions. Biology - Plants -...
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Making a Star on Earth
Large-scale nuclear fusion is one of the ultimate goals of science which has yet to be achieved. How does nuclear fusion work and is a future likely in which we can reproduce the power of a star on Earth? Earth Science - Earth's...
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Why Do Leaves Change Colour?
Throughout the year, some leaves change colour from green, to yellow, to red. Discover the role chlorophyll, carotene and anthocynanin pigments play in making this happen. Chemistry - Reactions - Learning Points. Leaf colour depends on...
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What is a Food Chain?
How energy is passed through living things can be described as a food chain. Journey through a food chain, from primary producers at the bottom to tertiary consumers at the top. Biology - Ecosystems - Learning Points. A 'food chain'...
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Photosynthesis: How Plants Convert Sunlight into Energy
Journey into the chloroplast, where photosynthesis takes place, to learn how plants convert sunlight into usable chemical energy - one of the most vital processes on Earth. Biology - Plants - Learning Points. Leaves are small...
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The Taiga Forest
The Taiga forest is the largest land ecosystem on Earth, stretching from Alaska to Japan. Explore the Taiga and discover the plant and animal life that survives these freezing conditions. Biology - Ecosystems - Learning Points. The Taiga...
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Plant and Animal Mutualism
In the natural world it can be hard to survive alone. From Nepal to Africa, explore some of the surprising relationships forged between plants and animals. Biology - Plants - Learning Points. Mutualism is when animals and plants work...
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Root Hairs
Find out how remarkable adaptations allow the spinifex plant to thrive in the desert. Biology - Plants - Learning Points. Root hairs are specially adapted to suit their role. Root hairs increase the surface area of the roots for...
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Genetic Modification
Genetic Modification allows scientists to manipulate the genetic information of cells, even swapping characteristics between different species. But it is a process which has caused a lot of controversy. Biology - Cells And DNA - Learning...
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Parts of the Plant: Flowers
How do plants reproduce? How is pollen dispersed and how does it develop into a seed? Discover the vital role flowers play in plant reproduction. Biology - Plants - Learning Points. Flowers are the reproductive part of most plants. The...
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Pollution: Water
How does water get polluted? Discover what water pollution means for the environment and how it affects humans. Earth Science - Human Impacts - Learning Points. Industry, agriculture and sewage all contribute to water pollution....