Science: Age 10

17 illustrated Science lessons for Age 10.

Leaf Pores Leaves have tiny openings called pores. These openings open and close to let carbon dioxide in and oxygen out.…
Gravity bends marble paths Gravity makes objects pull toward each other. A heavy ball can bend the paths of small marbles so they roll ar…
Water Molecule Atoms join in set combinations to make molecules. Two hydrogen atoms and one oxygen atom join to form one wate…
Planet Pulls Harder Every object pulls on every other object. An object with more matter pulls harder, so a planet pulls a child m…
Heat in the Dark Warm things give off infrared light that our eyes cannot see. A special camera turns that warmth into bright s…
Air sacs and blood tubes Tiny balloon-like air sacs sit inside your lungs, wrapped in thin blood tubes. Oxygen slips out of the air sac…
Two Brain Halves The brain has two halves that work together. Different areas handle jobs like seeing, hearing, moving, smellin…
Volcano Steam Makes Rain Early Earth had many erupting volcanoes. Their steam rose, cooled, and fell as heavy rain that gathered in low…
Sun Heats Ground Unevenly The sun warms some places on the ground more than others. Warm air rises, cooler air slides in low, and this m…
Plant Signal Path A plant can pass a quick electrical signal from cell to cell through its tissues. This signal can travel from …
How a Mosquito Finds You A mosquito first notices the carbon dioxide in your breath from far away. As it flies closer, it follows the s…
Magnet Poles Every magnet has two poles, often shown as red and blue. Opposite poles pull together, while matching poles pu…
Counting Insect Wings Look closely at the wings on each insect. A fly has one pair of wings, while a bee or wasp has two pairs.…
How a Leaf Makes Its Food A green leaf catches sunlight and uses it to turn water and air into sugar, which is its food. This is called …
Light Moves the Shadow A light source makes a shadow when an object blocks it. If the light is high or close, the shadow becomes shor…
Bones That Guard Your skeleton is a frame of hard bones that holds you up and lets you move. Some bones also make strong boxes …
Four Shapes of the Moon The Moon takes about a month to go through all of its shapes. Sunlight always lights up one half of the Moon, …