What? Why? How? - NATURE

Welcome to "What? Why? How?"!
On this video we challenge you to answer the following questions:

@0:06 Why do volcanoes erupt?
@0:31 Why do flowers smell good?
@0:45 What is inside of a cloud?
@1:06 Why do trees have leaves?
@1:30 Why does it rain?
@1:56 What makes wind blow?
@2:18 Why do seasons happen?
@2:45 Why does ice melt?
@3:07 Why do bees make honey?
@3:23 Is snow always white?
@3:42 Why can't we eat all types of mushrooms?
@4:01 Why do ants have a queen?
@4:20 Why do sea stars have arms?
@4:39 What is a bug?
@5:00 Why are some plants poisonous?
@5:21 How is paper made?
@5:44 Are spiders insects?
@6:07 How do plants feed?
@6:28 Why do fireflies glow in the dark?
@6:48 Why are all snowflakes different?
@7:12 How many oceans exist?
@7:33 How do tornadoes occur?
@8:01 Why are there waves?
@8:20 What is an invertebrate animal?
@8:39 Why is there sand?
@9:08 Is the soil always brown?
@9:35 Where does gold come from?
@9:54 how can sheep's wool become a sweater?
@10:22 Why do caterpillars change into butterflies?
@10:45 Why does wood float?