The third one in the problem solving series. The challenge here is of a mathematical nature. You will have to contend with two questions, the first one of which has an answer, a correct answer that is. The second one on the other hand is an open-ended variety. Have fun!
Who says sugar is bad for children?! It's especially not bad in a chemistry classroom where it can be used to create flares and to bring chemistry alive! This is the 6th Beauties vs. Brawns challenge.
When people think of modelling, they think of catwalks and skinny models, mostly. We do a lot of that in Science too...modelling that is, not the catwalks and skinny models!
Gunpowder chemistry in the classroom! My first year IB Chemistry students prepare gunpowder mixture and test them. The results, of course, are quite dramatic!
How do we count things that cannot be counted directly, such as the number of sand grains in the Sahara desert? And what does that have anything to do with Chemistry?