EXPECTED CORRECT ANSWERS
In a balanced aquatic ecosystem, which of the
following would have the greatest population?
Plankton
Any astronmical body that revolves around a larger
body is called?
A satellite
In chemistry, to be classified as an organic substance,
a substance must contain?
Carbon atoms
Which element does NOT contain any neutrons?
Hydrogen
The chemical formula of a compound describes the
elements the compound contains and the?
Ratio of elements in the compound
What is the symbol for the hydroxyl ion?
OH-
The tympanic membranes are also known as the?
Ear drums
Which of the following actions produce a chemical
change?
Adding salt to the hot water
Choking is prevented by the?
Epiglottis covering the voice box
What a do a hydrogen molecule and an oxygen
molecule have in common?
The size
, Which of the following is a non-renewable resource?
Wood
A perpetual-motion machine can never be built
because it is not possible to eliminate
Elasticity
Which of the following is a renewable resource?
Peanut Oil
When scientists measure a liquids resistance to flow,
they are measuring the liquid's?
Viscosity
A student bought a sandwich for 80 cents, milk for 20
cents, and pie for 30 cents. How much did the meal
cost?
$1.30
Together, two people earn $28,000. One earns $2,000
more than the other. How much is the smallest
income?
$13,000
Jerry walked a dog from 6:40 am to 7:30 pm one day.
If he was paid at the rate of 6$ per hour, how much did
he earn that day?
$5.00
A woman is looking for a bigger square office. She
finds an office twice the area of her current office. If
the perimeter of her current office is 88 feet, how
many square feet is the new office?
968 sq feet
How many feet of chain fence are necessary to
enclose a dog pen that is square and has an area of 64
sq feet?
32