Earth Science
Nature of Science
Biology
Physical Science
Grab Bag
100
The layer of the Earth that causes visible changes in the planet's surface is the: A. crust B. mantle C. outer core D. inner core
A. Crust
100
Joanna is testing which temperature helps plants grow the best. She makes sure that all the plants get the same amount of water and sunlight. These are examples of:
A. independent variables
B. controls
C. dependent variable
D. placebos
B. controls
100
Gametes are produced by:
A. fertilization
B. mitosis
C. meiosis
D. cell division
C. meiosis
100
When a substance's molecules are as still as possible, the substance is a:
A. solid
B. liquid
C. gas
D. plasma
A. solid
100
The Internet has changed the way people live mainly by:
A. improving quality of life
B. creating a need for electricity in rural areas
C. making information available anywhere
D. allowing commuters to work from home
C. making information available anywhere
200
Water freezes in a crack in a rock. When the water expands it fractures the rock. The natural force acting on the rock is: A. weathering B. erosion C. deposition D. uplift
A. weathering
200
To compare which two brands of fish food to see which one makes goldfish grow bigger faster, Aleis should run an experiment on two groups of goldfish and vary only the:
A. kind of fish
B. amount of food
C. brand of fish food
D. frequency of feeding
C. brand of fish food
200
The cell wall:
A. is an organelle found primarily in plant cells
B. is an organelle found primarily in animal cells
C. is an organelle found primarily in the cell membrane
D. is the "brain" of the cell
A. is an organelle found primarily in plant cells
200
A molecule consists of:
A. at least two atoms of any kind
B. at least two different kinds of atoms
C. at least three atoms of any kind
D. at least one atom and one molecule
A. at least two atoms of any kind
200
Which of these is the most important safety device in a laboratory?
A. goggles
B. beaker
C. lab coat
D. graduated cylinder
A. goggles
300
Similar contours on continents such as South America and Africa are evidence of: A. plate tectonics B. deposition C. subduction D. erosion
A. Plate tectonics
300
Which test would be best for determining how long a brand of car tires will last?
A. Crashing the car at high speeds into a wall
B. Heating and cooling the tires quickly
C. Driving the car at a set speed on the highway
D. Driving the car over nails
C. Driving the car at a set speed on the highway
300
Which of the following organisms gets its energy LEAST directly from the Sun?
A. a fox
B. a mouse
C. grass
D. an ant
A. a fox (a tertiary predator!)
300
Which of these is an example of a chemical change?
A. water freezing into ice
B. a pencil being sharpened
C. iron oxidizing into rust
D. cotton being woven into fabric
C. iron oxidizing into rust (Remember - is it still _____?"
300
A theory can best be defined as:
A. an accepted concept, supported by repeated testing, that describes a broad set of events
B. a tentative explanation for an observation
C. an idea that is always true
D. an idea that may lead to a testable hypothesis
A. an accepted concept, supported by repeated testing, that describes a broad set of events
400
If a cool air mass collides with a warm air mass andforces the warm air to rise, the result will be a(n): A. cold front B. warm front C. stationary front D. occluded front
B. warm front
400
If a company has a perfect design for an adult bicycle, and they want to modify it to make a version for kids under the age of 8, what design feature would be most important?
A. the comfort of the seats
B. the distance from the seat to the pedals
C. the material the pedals are made of
D. how well the gears change
B. the distance from the seat to the pedals
400
One advantage of sexual reproduction is that
A. it results in offspring with greater genetic variation
B. the zygote contains twice as much genetic material as the normal cells
C. it allows offspring to regenerate cells and tissues
D. it only takes one organism to reproduce
D. it only takes one organism to reproduce
400
Newton's Law of Inertia explains:
A. why bumper cars bounce off each other
B. why it is easy to move paper with wind
C. why big cars take more gas than little ones
D. why it is hard to stop a moving train
D. why it is hard to stop a moving train
400
When a fossil skeleton is not complete, paleontologists:
A. throw it out and look for a better one
B. use their imagination to decide how the rest of the skeleton should look
C. make inferences about how the rest of the skeleton should look
D. cannot gain any information from it
C. make inferences about how the rest of the skeleton should look
500
Oceans play a major role in climate because: A. tidal waves cause dramatic weather changes B. land areas near the ocean tend to be warmer than land areas farther from the ocean C. ocean water can hold and distribute an enormous amount of heat D. clouds can become unstable when they form over water instead of land
C. ocean water can hold and distribute an enormous amount of heat
500
Snell's law dictates how light is bent in different materials. Snell's law:
A. applies most of the time
B. has never been proven wrong
C. has been tested under all possible conditions
D. applies only under strict conditions
B. has never been proven wrong
500
A kelp forest used to have lots of kelp algae, but now has very little. Knowing that sea urchins eat kelp and sea otters eat sea urchins, what is one possible reason for the loss of kelp?
A. Sea otters have increased in number
B. Sea otters have decreased in number
C. Sea urchins have decreased in number
D. Sea otters have started eating kelp
B. Sea otters have decreased in number
500
On Earth, an apple has a mass of 150 grams and weighs 1.47 Newtons. On Jupiter, the same apple weighs 3.47 Newtons. What will its mass be?
A. 150 grams
B. 450 grams
C. 4.5 kilograms
D. 150 kilograms
A. 150 grams
Remember, mass doesn't change!
500
Which of these is an ecological benefit to "wind farms" (wind turbines used to generate electricity)? A. the turbine blades do not need to be replaced very often
B. they generate tourism dollars
C. they do not pollute the environment
D. they do not generate electricity on days without wind
C. they do not pollute the environment
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