Physical Science
Life Science
Earth & Space
Engineering Design
Random
100
Jim shot an arrow at the target but missed. In fact, the arrow was nowhere in sight!
"Don't worry" said Jim's buddy. "It is probably lying on the ground on the other side of the target."
"How do you know that?" asked Jim.
"Because of ________", answered his buddy.
A)the force of gravity
B)the pull on your bow
C)the force of the wind
D)the curve of the Earth
A)the force of gravity
100
How do the roots of most plants obtain food for survival?
A)Roots make their own food.
B)They store food within them.
C)They absorb food from the soil.
D)The phloem (inside the stem) carries food to the roots.
D)The phloem (inside the stem) carries food to the roots.
100
Science students set up the stream table seen here. It is a box with three inches of soil covering the bottom, about 3/4 down the table. Blocks are used to raise one end of the stream table higher than the other. One student attached a hose to an opening in the high end of the table and let the water form a "stream" through the dirt. After five minutes the students turned the water off and made observations. Sarah said that the moving water had caused soil erosion.
Sarah is correct. The moving water caused soil erosion. What is the name of the landform that formed at the bottom of the stream as the soil was eroded?
A)delta
B)plains
C)swamp
D)wetland
A)delta
100
Action AA batteries last four times as long as Bonus AA batteries. Action AA batteries also cost four times as much as Bonus batteries. What is a good reason to buy Action AA batteries?
A)They cost less in the long run.
B)They generate less waste in the long run.
C)They generate more power in the long run.
D)They require you to pay fewer taxes in the long run.
B)They generate less waste in the long run.
100
How would the global climate be different if more of Earth was covered by land than water?
A)The climate would be more extreme than it is today.
B)There would be no winds in the Northern Hemisphere.
C)The climate would be more moderate than it is today.
D)There would be no rainfall in the Northern Hemisphere.
A)The climate would be more extreme than it is today.
200
Fish eat different larvae found in the water. The fisherman eats the fish and the transfer of energy moves through the food chain. Where does the energy originate or begin?
A)the sun
B)the fish
C)the larvae
D)the human
A)the sun
200
If the hawk population decreases due to overhunting, what would be the effect on the food chain?
A)the remaining hawks will have to eat shrimp
B)the shrimp population will dramatically increase
C)the population of fish that are eaten by the hawk should increase
D)the hawk population does not affect the population of the other organisms in the food chain
C)the population of fish that are eaten by the hawk should increase
200
Which is a shared characteristic of all the locations marked by stars on the map?
A)glacier locations
B)saltwater sources
C)volcano hot spots
D)Earth's highest points
B)saltwater sources
200
To prove the results of an experiment are reliable, multiple trials are conducted. There are several ways to conduct multiple trials. One way is to repeat the exact experiment multiple times. Which statement describes another way to conduct multiple trials?
A)Conduct the experiment on multiple identical objects at the same time.
B)Conduct the experiment multiple times using different variables in each trial.
C)Conduct the experiment multiple times using different equipment in each trial.
D)Conduct the experiment multiple times using a different hypothesis in each trial.
A)Conduct the experiment on multiple identical objects at the same time.
200
How does a volcanic eruption affect the Earth's atmosphere?
A)Eruptions shoot out ash and poisonous gases into the air.
B)The clouds that form around a volcano drys out the surrounding area.
C)Volcanoes can disturb the surrounding air and create extremely high winds.
D)The lava ejected from the volcano can clean and purify the air around the volcano.
A)Eruptions shoot out ash and poisonous gases into the air.
300
Iron is the most common element forming the planet Earth and can be found in Earth's outer and inner core. It is the fourth most common element in the Earth's crust as well. Fresh iron surfaces appear silver-gray, but rusts easily in normal air. It is a solid at room temperature, but it is a soft metal. It is malleable and used for many tools and utensils. Iron is attracted to a magnet and can be magnetized. The melting point of iron is 2800 degree Farenheit.
A)color
B)texture
C)magnetism
D)melting point
C)magnetism
300
Plants are producers. They make their own food using energy from the Sun. What else do plants need to make their own food?
A)air and water
B)soil and water
C)fertilizer and soil
D)fertilizer and water
A)air and water
300
This volcano is surrounded by water. When the lava hardens, what landform will we see?
A)a delta
B)a valley
C)a canyon
D)an island
D)an island
300
Roseanne and Jackie were asked to design and create a paper airplane that would stay in the air for as long as possible. They began by folding printer paper into four different planes. They then tested the flying time of the planes by throwing them and timing their flights with a stopwatch. They compared results to select the plane to use in the competition.
According to the teacher's criteria, what data did Roseanne and Jackie MOST LIKELY use to select their best airplane?
A)how far their plane went
B)the planes' time in the air
C)the plane with the lowest weight
D)the plane with the widest wing-span
B)the planes' time in the air
300
Look at the diagram of the food web. A decrease in the number of willow trees will MOST LIKELY affect which organism in the food chain?
A)lynx
B)red fox
C)insects
D)snowshoe hare
D)snowshoe hare
400
Claudia was assigned the task of making a model volcano. To make her volcano erupt, Claudia mixed baking soda and vinegar. When these two substances came in contact with one another they produced bubbles and fizzed making it look like the volcano was erupting. After "erupting" her volcano Claudia's teacher told her that she had created a chemical reaction inside of the volcano. What evidence did Claudia see of a chemical reaction?
A)change in odor
B)gas production
C)change in color
D)light production
B)gas production
400
Plants are called producers because they make their own food. Just like us, plants use their food for energy to respond, grow, develop and reproduce. Which substance in this model is food for the plant?
A)soil
B)water
C)oxygen
D)glucose
D)glucose
400
Waste management is important for the environment. Waste can cause pollution and disease if it is not handled properly. There are many different methods of waste management to help ease the environmental pressures imposed by waste. Modern methods include recycling, composting, incineration, sustainability, landfill, integration, sewage treatment, and waste minimization. The planet depends on a successful approach to waste disposal.
Sewage treatment is the process of removing contaminants from wastewater and household sewage. It includes physical, chemical, and biological processes to remove physical, chemical and biological contaminants. Identify the positive effects of sewage treatment on the environment?
A)to provide jobs in America
B)protection to the public health from the spread of diseases
C)to preserve the natural environment by controlling water pollution
D)to preserve the natural environment by controlling water pollution and protection to the public health from the spread of diseases
D)to preserve the natural environment by controlling water pollution and protection to the public health from the spread of diseases
400
Sally and Juan’s science teacher has directed the class to build a paper airplane. The challenge is to build an airplane that flies the farthest distance. The students have two days to design and test their planes. The assignment will end with a “fly-off”. Sally and Juan built their first plane. Whenever they tested the plane, it would take a nose dive into the floor. They changed the design by reshaping the nose of the plane and adding some weight to the tail. The plane flew, but did not get very far. Next they tried to change the way they threw the plane. After many tries, their plane flew an average distance of 35 meters.
Sally and Juan's trial and error airplane design could be described as ___________________ in the technological design process.
A)evaluating a solution
B)identifying a problem
C)communicating results
D)implementing a design
D)implementing a design
400
Water lilies are very well adapted to their habitats. They live and grow on the edges of shallow water, lakes, or ponds. They are rooted under water, but their leaves are afloat so they can get ____________.
A)water
B)oxygen
C)sunlight
D)attract frogs
C)sunlight
500
Pop! Pop! Pop! It is fun to pop bubble wrap. The bubbles are filled with air. The bubbles we are popping shows us that air
A)has mass.
B)has weight.
C)takes up space.
D)is made up of several gases.
C)takes up space.
500
We eat food for energy. The energy for any food chain begins with the sun and sunlight. Name an organism that is a producer, that converts sunlight into chemical energy or sugar.
A)fox
B)grass
C)mushroom
D)rabbit
B)grass
500
If Earth were not tilted on its axis, what change would we experience?
A)Day length would be less than 24 hours.
B)Both sides of the moon would be visible.
C)Temperatures would be constant year round.
D)The length of the year would be more than 365 days.
C)Temperatures would be constant year round.
500
During daylight savings, Christie's neighborhood soccer games get cut short because the sky becomes dark much earlier than during the summer. Her father talked to the electric company about installing large lights above the field so Christie and other kids in the community could continue their soccer games after dark. The electric company informed Christie's father that although the light poles could be installed, there are too many short trees and trees with low branches in the park to connect electrical lines. Without electricity delivered to the light poles, they would not work. Christie and her father talked about this information and thought of several ideas to solve the problem. Which idea would solve the problem best, causing the least amount of damage to the environment and requiring the least amount of maintenance?
A)Instead of electrical light poles, install solar-powered light poles.
B)Parents can leave their cars running with headlights on facing the park.
C)Cut down all the park's trees that would interfere with electrical wires.
D)Build several large fire pits around the field and light them each night.
A)Instead of electrical light poles, install solar-powered light poles.
500
During this landslide, rocks fall because ___________ and then build up at the base of the cliff.
A)of a friction force
B)of the force of gravity
C)of the constant movement of the Earth
D)they are heavier than the soil supporting them
B)of the force of gravity