Mon Prof Augmenté
Biology: Age 11
25 illustrated Biology lessons for Age 11.
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Groups inside groups and a family tree of life Living things can be sorted into big groups that hold smaller groups, using features they share. The same sort… -
Plant and animal cells All living things are built from tiny units called cells, which you can only see under a microscope. Plant and… -
Animal Cell and Plant Cell Every living thing is made of tiny building blocks called cells, which you can see with a microscope. Animal a… -
Plants Make Their Own Food A green plant uses sunlight, water, carbon dioxide from the air and mineral salts from the soil to build its o… -
Eye to Brain Reading Path When you read, your eyes take in printed letters and send them to your brain. Inside the brain, some letters a… -
Bean plant by a window A bean plant grows in a pot on a windowsill. Its stem bends toward the light, its leaves face the window, and … -
Plaque, Sugar and Acid A sticky film of bacteria lives on your teeth. When sugar stays on that film, the bacteria turn it into acid t… -
Bees Tap Antennae Honeybees in a hive touch antennae to share quick signals. The touch works only when the bees are very close t… -
Body Messages Nerves are like tiny roads that carry messages through your body. Some nerves bring news from your skin to you… -
Nose and Brain Scent molecules float in the air and enter your nose. They fit into matching spots inside the nose, and nerves… -
Nutrients cross the intestine wall Digested food is broken into tiny nutrients inside the small intestine. These nutrients pass through the intes… -
One Cell, Many Nuclei A single living cell can hold many nuclei inside it. Animals, plants, and fungi are usually made of many cells… -
Pollen and the Allergy Response Pollen is usually harmless. In an allergy, the body treats it like an invader and releases histamine.… -
Dust Across the Sky A huge cloud of dust can block sunlight for many months. Without enough light, plants die, and animals that ea… -
Pollen Reaches the Ovule A pollen grain lands on the sticky tip of a flower's pistil. It grows a thin tube down to the ovule, and male … -
Cells in Water Long ago, life began in water as tiny single-celled microbes. Later, some cells gained a nucleus and DNA, and … -
Virus Package A virus is a tiny package with an outer shell or envelope. Inside is genetic material, and the package can tak… -
Egg and Sperm Cells Human reproduction uses two cells: an egg from the female and a sperm from the male. Eggs are made in ovaries,… -
Bacteria and fungi in the heap In a heap of kitchen scraps, tiny bacteria and fungi feed on pieces of plants. As they break the scraps down t… -
DNA Inside a Cell A cell is a tiny container, and its DNA is kept safely inside a central part called the nucleus. Inside the nu… -
Rotational Harvesting A forest is divided into separate plots. Each year only one plot is cut, so the others have decades to grow ba… -
Color Cells Send Signals Light enters the eye and lands on three tiny color cells at the back. Each cell sends its own signal along a n… -
The meadow food web A food web shows many food chains in one place, and they link up because animals eat more than one kind of foo… -
Inside an Animal Cell Every animal, including you, is made of tiny cells. Each part of a cell has its own special job, a bit like th… -
How Humans and Birds Make Sound You make sound with vocal cords at the top of your windpipe, but a bird makes sound deep in its chest, where i…