1
In the ________, the scientist mixed two chemicals to see the reaction.
2
To find the answers, we must ask the right _________.
3
The ________ for water is H2O, which means it has two hydrogen atoms and one oxygen atom.
4
_______ are the tiny particles that everything is made from.
5
___________ in technology helps us solve many problems that seemed impossible before.
6
______ is a branch of science that studies the substances that make up our world.
7
A __________ works in a laboratory, where they conduct experiments to discover new things.
8
_________ is the force that keeps us on the ground and makes things fall when we drop them.
