Topic 7: Chemistry Flashcards
What is an Alchemist?
An olden day chemist that tried to make metal into gold
What an Investigation?
An activity to find information
What is an Observation?
Something that you see
What is a Scientist?
Someone who works to make new discoveries in science
What is an Element?
Pure substance that has only one type of cell
What are Atoms?
A very small particle that makes up everything except energy
What is an Atomic Number?
The number of protons in the nucleus of an atom
What is a Chemical Symbol?
The standard way scientists can write an element
Eg O = Oxygen
What is a Compound?
A substance made of two or more different atoms that are tightly bonded
What is a Mixture?
Two or more different atoms that aren’t tightly bonded