WorksheetsScience
Total questions: 10
Worksheet time: 6mins
Name
Class
Date
1.
The second energy level can hold up to how many electrons?
a)
2
b)
8
c)
10
d)
12
2.
Which of these animals is a MAMMAL?
a)
Bird
b)
Mouse
c)
Shark
d)
Frog
3.
Which of these animals is an AMPHIBIAN?
a)
Dog
b)
Frog
c)
Cat
d)
Spider
4.
What is the molecular structure of Table salt?
a)
Sandwich
b)
Molecular who?
c)
NaCI
d)
H2O
5.
What is Newton's first Law of Motion?
a)
Every action has an equal opposite reaction
b)
Sandwich
c)
An object in motion stays in motion unless acted upon by an unbalanced force
d)
The force acting on an object is equal to the mass of an object times its Acceleration
6.
A water molecule has the chemical formula H2O. This means that the water molecule is made up of
a)
Two hydrogen atoms and one oxygen atom
b)
Two oxygen atoms and one hydrogen atom
c)
Two hydrogen atoms and two oxygen atoms
d)
Two molecules of water
7.
Water is a universal solvent because it...
a)
It can be found anywhere
b)
It freezes when it gets cold
c)
floats when frozen
d)
Dissolves most substances
8.
Which end of the water molecule has a slightly positive charge?
a)
the oxygen end
b)
the hydrogen end
c)
both ends are slightly positive
d)
neither end is positive
9.
Which of the following are indicators of healthy water systems?
a)
high nitrates, high pH, and low temperatures
b)
low temperatures, high dissolved oxygen, and neutral pH
10.
A measure of the amount of dissolved salts in a given amount of liquid
a)
salinity
b)
bio-indicators
c)
wave
d)
tide
100 %
