________ can conduct electricity.
Salt water
This is a pH___________
indicator
Force can make an object:
move, stop, and change direction
Scientists use_________ to test if a solution is acidic or alkaline.
litmus paper
The bar of soap is slippery because it is
alkaline
This is a __________ solution.
water solution
The lemon is sour because it is
acidic
Spring force and Magnetic force are examples of contact force.
False
We can measure how acidic or alkaline a solution is using a ____________.
pH scale
If no force is applied, the object stays
stationary
The more________ in the water, the stronger the electrical current it can conduct.
salt
Which kind of force is this?
Non-contact force
What are two examples of contact force?
Applied Force and Spring Force
She is jumping on a______________.
trampoline
Leaves fall because of
gravity
Force is a _____and ____ that can make an object move, stop, or change direction.
push or pull
______________ shows how well water can carry electricity.
Electrical Conductivity