Font size
WorksheetsTerm 2 Science Review
Total questions: 100
Worksheet time: 1hrs 15mins
volume
Acid is?
A substance that reacts to metals and carbonates, and has a Ph of below 7.
Often used in drain cleaner.
Something that can only be found in a lab
A bitter tasting substance
A base is
A substance that feels slippery, has a higher Ph than 7, and is often used in drain cleaner.
Has a Ph of below 7 and can react to metal and carbonates
Is only found in a lab
Something water can never be
Water is?
Always an acd
Always a base
Is the most common base, and acid in the world
Always is neutral that is why it is safe to drink
An indicator is?
A lab manual or guide
Something like litmus paper that can tell you if a substance is acidic or basic
A PS4 game where you pretend to direct traffic
Something only scientists in a lab can use
A substance with a ph of lower than 7 is a
Acid
True OG
Base
Salt
A substance with a ph of higher that 7.5 is a?
Home dog doggity
Base
Acid
Salt
When you neutralize acid with a base you create
a Salt and water
You can not neutralize acid with a base
You create carbon dioxide
A moderate sized explosion
When found in food, acids often taste ________.
Sour
Bitter
Salty
Slippery
When found in food, bases often taste _______.
Sour
Bitter
Salty
Soggy
What range of values on the pH scale represent solutions with a higher ratio of hydroxide (OH-) ions?
below 7
7
above 7
0-14
What range of values on the pH scale represent solutions with a higher ratio of hydronium (H3O+) ions?
0-14
below 7
7
above 7
What pH is the strongest base?
1
7
4
14
A physical change:
DOES result in a new substance.
DOES NOT result in a new substance.
A chemical change:
DOES result in a new substance.
DOES NOT result in a new substance.
If two liquids are mixed together and a thermometer shows a temperature increase, this change is a ____________________.
chemical change
physical change
When a cake is baked in an oven, a chemical change has occurred when:
the batter sticks to the pan
the cake batter changes color
steam rises from the warm cake
the pan increases in temperature
When leaves decay, they go through a _____________________.
chemical change
physical change
An automobile you are riding in suddenly stops, why does your body continue to go forward?
An object in motion stays in motion.
Gravity pulls your body towards the earth.
Friction makes your body slow down.
If a magician pulls a table cloth from under a table of dishes, what should happen based on Newton's 1st law?
The dishes will stay in place on the table.
The dishes will fall to the ground.
The dishes will accelerate and then slow down.
Pushing a child on a swing is harder than pushing an adult on the same swing.
True
False
Why is it harder to push a cart full of bricks than a cart full of feathers?
The bricks have more friction than the feathers.
The feathers have more friction than the bricks.
The bricks have more weight/mass than the feathers.
The feathers have more weight/mass than the bricks.
Acceleration occurs when there is a change in speed.
True
False
change in velocity during a period of time
acceleration
vertical
acceleration formula
What is energy?
moving energy
stored energy
renewable energy
The ability to do work.
What is kinetic energy?
moving energy
potential energy
stored energy
renewable energy
What is potential energy?
moving energy
stored energy
renewable energy
non renewable energy
A computer uses what type of energy to operate?
Mechanical
Light
Electric
Sound
