DETAILED QUESTIONS AND CORRECT
ANSWERS ALREADY GRADED A+.
Which of the following actions produce a chemical change? - ANSWER- adding salt to
hot water
Choking is prevented by the - ANSWER- epiglottis covering the voice box
Which if the following is a non-renewable resource? - ANSWER- wood
When scientists measure a liquid's resistance to flow, they are measuring the liquid's...?
- ANSWER- viscosity
A radar is designed to report the track of an aircraft every second. If this radar reports
30 tracks in one minute, what percentage of the time did the radar track the aircraft? -
ANSWER- 50%
Jerry walked a dog from 6:40am to 7:30pm one day. If he was paid at the rate of 6$ per
hour, how much did he earn that day? - ANSWER- $5.00
A women 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? - ANSWER- 176 sq ft
, If the perimeter of a square garden is 84 feet, what is the area of the garden? -
ANSWER- 441 sq ft.
How many feet of chain fence are necessary to enclose a dog pen that is square an has
an area of 64 square feet? - ANSWER- 32 feet
Water droplets forming on the inside of a cold windshield is an example of - ANSWER-
Condensation
Any astronomical body that revolves around a larger body is called? - ANSWER- a
satellite
In chemistry, to be classified as an organic substance, a substance my contain -
ANSWER- carbon atoms
Which element does NOT contain any neutrons?
A. Iron
B. Carbon
C. Oxygen
D. Hydrogen - ANSWER- Hydrogen