Why does cold air go down and hot air go up?
Does cold air go down because the earth’s core is made out of magma and does hot air go up because it’s cold out in space – and does the circle repeat? - Neo, age 10 Learn about heat energy, … Continued
The Water Cycle: Water, Snow and Ice
What happens to the water cycle somewhere as cold as Antarctica? This extended resource is designed for Year 7 Earth and Space students who are learning about the water cycle and states of matter. It covers the relationship between density … Continued