Early people were producing these types of _______ changes even though they didn't know what was happening. For example - extracting metals from ores and making jewelry from gold.
a) Chemical
b) Physical
c) Special
A) Chemical
What determines an atom's mass?
A) Number of protons
B) Number of protons and neutrons
C) Number of protons, neutrons and electrons
D) Number of electrons
B) Number of protons and neutrons
This is anything that takes up space and has mass
matter
People used to believe that you could turn iron and lead into what type of precious metal?
Gold
A proton has an atomic mass of ___ (what number?)
1
The smallest unit of matter is called an __________.
atom
Carbon's atomic number is _______.
6
The earliest form of chemistry was called _______.
A) Physics
B) Alchemy
C) Biochemistry
D) AI
B) alchemy
A neutron has an atomic mass of ____? (what number)
1
True or false - a basketball is made of matter?
True
What element has an atomic number of 2?
Helium
Names for elements comes from the English language or ____________ language.
Latin
If an atom was enlarged so the electrons were spinning around the stands of a football stadium, how big would the nucleus be?
a) The football field
b) A house
c) A person
d) A marble
d) A marble
Name something that is NOT made of matter
Answers will vary (light, heat, sound, ideas, feelings, etc)
Why does hydrogen have an atomic number of 1?
because it only has one proton
People first realised that an atom had a proton and an electron in which century?
a) 1600's
b) 1700's
c) 1800's
d) 1900's
d) 1900's
Compared to a proton, an electron has a mass of what?
1/2000 (accept anything close to this)
When someone goes to the moon...
A) Their mass changes
B) Their weight changes
C) Their mass and weight both change
D) Neither their mass or weight change
B) Their weight changes (due to the difference in gravity)