
Gr 7 Science Quiz - Week 4

Quiz
•
Science
•
7th Grade
•
Hard
Etienne Cloete
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
__________ was the first person to theorize the existence of the atom.
Socrates
Democritus
Alexander
Archimedes
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A pure substance can be
an element or compound
only a mixture
mixtures or compounds
heterogenous
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The Plum-Pudding Model of the atom was an idea by
Dalton
Democritus
Thomson
Bohr
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The Bohr Model of the Atom show us that electrons orbit the atom in different ________ ________
energy levels
types of matter
numbers
empty spaces
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The charge of an electron is negative [-]
True
False
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A neutron has a positive charge [+]
True
False
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Helium has 4 protons.
True
False
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