Questions and CORRECT Answers
In a balanced aquatic ecosystem, which of the following would have the greatest population? -
CORRECT ANSWER - Plankton
Any astronmical body that revolves around a larger body is called? - CORRECT ANSWER -
A satellite
In chemistry, to be classified as an organic substance, a substance must contain? - CORRECT
ANSWER - Carbon atoms
Which element does NOT contain any neutrons? - CORRECT ANSWER - Hydrogen
The chemical formula of a compound describes the elements the compound contains and the? -
CORRECT ANSWER - Ratio of elements in the compound
What is the symbol for the hydroxyl ion? - CORRECT ANSWER - OH-
The tympanic membranes are also known as the? - CORRECT ANSWER - Ear drums
Which of the following actions produce a chemical change? - CORRECT ANSWER - Adding
salt to the hot water
Choking is prevented by the? - CORRECT ANSWER - Epiglottis covering the voice box
What a do a hydrogen molecule and an oxygen molecule have in common? - CORRECT
ANSWER - The size
, Which of the following is a non-renewable resource? - CORRECT ANSWER - Wood
A perpetual-motion machine can never be built because it is not possible to eliminate -
CORRECT ANSWER - Elasticity
Which of the following is a renewable resource? - CORRECT ANSWER - Peanut Oil
When scientists measure a liquids resistance to flow, they are measuring the liquid's? -
CORRECT ANSWER - Viscosity
A student bought a sandwich for 80 cents, milk for 20 cents, and pie for 30 cents. How much did
the meal cost? - CORRECT ANSWER - $1.30
Together, two people earn $28,000. One earns $2,000 more than the other. How much is the
smallest income? - CORRECT ANSWER - $13,000
Jerry walked a dog from 6:40 am to 7:30 pm one day. If he was paid at the rate of 6$ per hour,
how much did he earn that day? - CORRECT ANSWER - $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? -
CORRECT ANSWER - 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? - CORRECT ANSWER - 32
A train goes twice as fast downhill as it can go uphill, and 2/3 feet as fast uphill as it can go on
level ground. If it goes 120 miles per hour downhill, how long will it take to travel 45 miles per
flat land? - CORRECT ANSWER - 1/2 hour