Science: Age 12

11 illustrated Science lessons for Age 12.

Ice melting into steam When a pure substance like water melts or boils, it takes in heat but its temperature stops rising. The temper…
Ice, water and mist A pure substance can be solid, liquid or gas, and it changes between them when it is heated or cooled. The ste…
The Journey of Food Through the Body Food travels through one long tube: the mouth, the oesophagus, the stomach, the small intestine and then the l…
Tilted Earth Around the Sun Earth travels around the Sun with its axis tilted. The half of Earth that leans toward the Sun gets stronger s…
Plant Cell Under a Microscope A thin slice of plant tissue is seen through a light microscope. The cells are box-shaped, with a firm outer w…
Ice, Water, Steam A pure substance can exist as a solid, a liquid, or a gas. Heating or cooling it can change it from one state …
Ice, Water and Steam Water can change between solid ice, liquid water and an invisible gas. Heating or cooling makes these changes …
Ocean Plate Under Continent A dark ocean plate bends and sinks beneath a thicker continental plate. The sinking rock melts, and red magma …
Bent Rock, Sudden Crack Along the edge of a tectonic plate, rock slowly bends and stores energy over a long time. When the rock finall…
Round Dance in the Hive A honeybee walks in a small circle on the comb. The time she spends dancing tells other bees how much food is …
Water on a windowsill A glass of ice cubes, a puddle, a steaming cup and a cold window pane sit together in one scene. Water moves b…