List of science concepts.
Simple scientific concepts that can be little tricky to explain, but we've tried our best.
An animal is albino if it is missing the brown pigment in their skin and hair that would otherwise make them a normal color. Albino animals are usually pure white with pink or pale blue eyes. Albino animals don't usually live very long in the wild as they do not camouflage very well. Albino and white animals are also prone to sunburn. Albino rabbits are very common as pets. The albino in the picture is a squirrel.
If you have two things that are the same size, and one weighs a lot more than the other, the heavy thing is more dense.
You dissolve a solid in a liquid by mixing the solid around until it seems to disappear. Once the solid is completely dissolved, the resulting solution behaves exactly like a liquid. Solids won't dissolve in any liquid, they must be soluble in them. For example, table salt is soluble in water but not in oil.
An echo is reflected sound. You get echos most often in enclosed spaces with hard walls, like an empty room with wooden floors, or the inside of a large concrete pipe like in the picture. If you make a noise in a place like this, the noise you make sounds like it is being repeated back at you again and again, getting quieter each time.
Electricity can be stored inside a battery to be used later.
Evaporation is the process of a liquid slowly turning into a gas. You see evaporation in everyday life when you hang out washing (laundry) or something else wet to dry. Evaporation happens when the molecules in the liquid get enough energy - usually from sunlight - to break through the surface of the liquid and float away. You can see the fist in the picture is steaming as the water from a hot shower evaporates away.
When something explodes it suddenly gets bigger. Explosions usually make a loud noise and make a lot of heat. Popcorn popping is an example of a small explosion, and a bomb going off is an example of a large one. Large explosions can create so much force they can reduce buildings to rubble.