Why is salt crunchy? Why is gum chewy?
Author : School in the Cloud
Chemistry | Food | Salt | Science
What is the chemistry behind delicious food? What knowledge of chemistry can chefs use to improve the taste of food?
chefs | Chemistry | Food
If you could live on Mars for a year, what do you think would be your biggest challenge?
challenge | Food | Life | Space | Space Travel | Water
What are the Northern Lights?
Atmosphere | Mythology | Science | Space | Weather
Why does the rainbow have only seven colours?
colours | rainbow | Science
Why don’t humans eat bugs (usually)?
bugs | Food | Humans
What is the function of flies and mice within their ecosystems?
Para que existen las moscas y los ratones? (Big Question originally submitted in Spanish).
Biology | Ecology | Environment | Science | Spanish
Why are tears salty?
Biology | Chemistry | crying | Emotions | Taste
What is the process of evolution?
Biology | Evolution | natural history | Science
¿Porqué no hay muchos alimentos de color azul? (why are there not many blue foods?)
Colour | Food
How and why do landforms change over time?
Earth | Geography | Geology | Landforms | Nature | Science
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