First Children Encyclopedia

(Marvins-Underground-K-12) #1

218


Being a scientist

How much bigger do things look through a microscope?


Science and technology


Scientists study the world around


us. They look for gaps in our


knowledge and try to find the


answers. Not all scientists study


the same things – they specialize


in different areas.


Testing, testing


Scientists explore their ideas and theories


using tests called experiments. In this


book, there are lots of “hands-on”


experiments you can do to


try things out


for yourself.


Mixing it up
Experimenting with chemicals and
their reactions can produce some
mixed results. Some mixtures can be
dangerous, while others can be the
answer the scientists are after.

Experiments can involve
toxic fumes or chemicals that
might explode, so scientists
wear protective goggles.
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