A square has how many sides?
4
How much is 2 plus 2?
4
A rose is a what?
A flower
What is the best explanation of how a smooth
... [Show More] round stone became smooth?
It was in a stream for a long time
If you place bean seeds between moist paper towels and watch the stem leaves appear you will see a demonstration of?
germination
Any astronomical body that revolves around a larger body is called?
satellite
In chemistry, to be classified as an organic substance, a substance must contain?
carbon atoms
What element does not contain any neutrons?
Hydrogen
What is the symbol for hydroxyl ion?
OH-
A perpetual-motion machine can never be built because it is not possible to eliminate what?
Clasticity
The chemical formula of a compound describes the elements the compound contains and the...
the ratio of elements in a compound
When scientists measures a liquids resistance to flow, they are measuring the liquids...
Viscosity
The tympanic membranes are also known as the...
Ear drums
When sodium atoms form sodium ions they:
lose electrons
Choking is prevented by the...?
epiglottis covering the voice box
Which of the following actions produce & chemical change?
Adding salt to the hot water
Which of the following is a non-renewable resource?
Copper
What are the 2 main gases that make up stars?
Hydrogen and helium
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?
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?
$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?
176 sq ft
If the perimeter of a square garden is 84 feet, what is the area of the garden?
441sqft
How many feet of chain fence are necessary to enclose a dog pen that is square and has an area of 64sqft
32
The pet store had 6 puppies selling for $104 each and 12 kittens selling for $24 each. Today, only 2 puppies and 8 kittens we're left. In dollar terms, what was the ratio of sales of puppies and kittens?
13 to 3
The price of salmon at a fish market is $5.40 per pound. This is 150% of it's cost at a supermarket. How much would it cost per pound at a supermarket?
$3.60
A train goes twice as fast downhill as it can go uphill, and 2/3 as fast uphill as it can go on level ground. If it goes 120 mph downhill, how long will it take to travel 45 miles on flat land?
1/2 hour
Jamie just bought two boxes. The first box is square, with each side measuring 10 units, and is 4 units high. The second box is rectangular and has twice the volume of the square box. If the height of the second box is 5 units, and the width is 10 units, what is the length of the second box?
16 units
Each August, a restaurant's rent is adjusted to the cost of living index. The rent has been 1,550 a month, and the cost of living index for this August was 3.7%. What is the new rent per month?
$1,607.35
There are 9 red and 6 green marbles in a bag. A child reaches in the bag and randomly takes one marble. What is the probability pf that child getting a green marble?
.66
Before being painted, a concrete play area was marked off into squares and then into triangles. For the square shown, what is the area of the triangular part labeled XYZ?
32sqft
if the population of a certain city increased 25% in 2 years, the new population was what percent of the old?
125%
a printing press will print 6,000 copies in 20 minutes. a second press can print 15,000 copies in 60 minutes. how many more copies per minute will the faster press print than the slower press?
3,000
Debra and Ian shared in a $1,000,000 estate. If Ian received 125,000, and Debra the rest, what fraction of the estate did Debra receive?
7/8
Small most nearly means
a little
Prestige most nearly means
status
we will long remember our perilous journey
hazardous
Inept most nearly means
silly
Oppressive most nearly means
painful
"Complexity" most nearly means
intricacy
Nurture most nearly means
cultivate
void most nearly means
empty
Fervently most nearly means
passionately
Devout most nearly means
pious
Erratically most nearly means
irregularly
sustain most nearly means
tolerate
They "consoled" each other after the accident.
solaced
the cashier negated the charge of the item
nullified
crass most nearly means
crude
Peruse most nearly means
study
the lens of the eye focuses light rays as they enter the eye. muscles around the lens react to light and change the shape of the lens by expanding or contracting. certain diseases or injury to the lens of the eye can result in blurry vision. according to the paragraph,the lens of the eye is used to
focus light
Your heart's mitral valve does an awfully big job. Letting blood from the left atrium of the heart into the left ventricle without losing a drop is one of the toughest tasks in the circulatory system. In fact, if the system was suddenly opened at that point the force of the valve closing with send blood 5 feet into the air In this passage the author's purpose is to?
convince the readers of the stress on the mitral valve
riding the mail plane is a low-budget way to visit america's largest national park--wrangell-st.elias-- 13 million acres of scenic beauty. copper first drew prospectors to this part of alaska. from 1911 to 1938, the kennicott mine produced 200 million tons of it. now a mecca for tourists, the town of kennicott was abandoned to the ghosts when the copper ran out. which of the following illustrates the correct sequence of events?
copper drew prospectors, copper ran out, town abandoned, tourists attraction
Physicists seek out those features of nature that are simple and universal. The secret of their success is not so much a matter of finding answers as it is asking the right questions. The trick is keeping the questions simple and sticking to universal phenomena. Simple questions can be answered unambiguously by careful observation of repeated experiments and by logical thinking. which of the following questions is most clearly an example of the kind discussed in the paragraph?
how fast do stones of a particular size fall?
An allergy is a hypersensitivity to substances that are essentially harmless. For as yet poorly understood reasons, the immune system malfunctions and marshals up an army of antibodies to fight these substances. For many allergies, this malfunction causes a large amount of histamine to flood into the bloodstream. It is overabundance of histamine that causes allergic symptoms such as headaches, rashes, and sneezing. the passage states all of the following about allergies except
medical science does not fully understand why the body has an allergic reaction to certain substances
a period of time is usually measured by comparing it with another period of time.for example, a year on mercury is equal to 88 earth days. a year on uranus is approximately 348 mercury years. according to the passage, the way time is usually measured shows that the time is
calendar-based
weather radar is a great help to pilots in detecting thunderstorms. however, pilots must be aware that radar does not reliably detect hail. radar operates by transmitting a pulse of radio energy and receiving the pulse again after it is reflected by a target. large raindrops, the kind found in intense thunderstorms, are the best radar reflectors and will show up as intense targets on the screen. hail is somewhat porous and has an uneven structure; it tends to absorb or scatter the radar pulse rather than reflect it back to the antenna. according to the paragraph, weather radar does not reliably. detect hail because of
its penetrable surface [Show Less]