Nature of Science
Earth and Space Science
Physical Science
Life Science
Human Body
100
Which of these questions can BEST be tested using an experiment?
A. How does a grasshopper fly?
B. Do worms like dry or wet places better?
C. Do giraffes control how tall they can grow?
D. How does soil temperature affect tomato plant growth?
B. Do worms like dry or wet places better?
100
Kashvi likes to look out the window at the moon. She observes that it seems to change every week. Which sentence best explains why this happens?
A. The moon moves between Earth and the Sun
B. The moon rotates only once in about a month
C. The same side of the moon always faces Earth
D. The amount of the lighted part of the moon that faces Earth changes
D. The amount of the lighted part of the moon that faces Earth changes
100
Which of the following statements is true about a basic electrical circuit?
A. No electricity will flow through a circuit without a light
B. Electricity will flow through a circuit without a source of energy
C. No electricity will flow through a circuit that has an open switch
D. Electricity will flow through a circuit that forms an incomplete loop
C. No electricity will flow through a circuit that has an open switch
100
Marvin predicts that if marigold flowers are planted around a group of tomato plants, then fewer insects will eat the tomatoes. Which of the following observations would best support Marvin's prediction?
A. A count of 20 insects before marigolds are planted and 20 insects after marigolds are planted.
B. A count of 20 insects before marigolds are planted and 12 insects after marigolds are planted.
C. A count of 10 tomato plants before marigolds are planted and 5 tomato plants after marigolds are planted
D. A count of 10 tomato plants before marigolds are planted and 15 tomato plants after marigolds are planted.
B. A count of 20 insects before marigolds are planted and 12 insects after marigolds are planted.
100
In the digestive system, what is the main job of the stomach?
A. to absorb water from unused food particles
B. to mix food with acids and break it down into a liquid-like mixture
C. to carry food from the mouth to the small intestine
D. to filter toxins out of the digestive tract
B. to mix food with acids and break it down into a liquid-like mixture
200
Why is it important for scientists to repeat their experiments?
A. Repeating experiments helps scientists to change their data.
B. Repeating experiments helps scientists to verify their results.
C. Repeating experiments helps scientists to get their data faster.
D. Repeating experiments helps scientists to get the results they want.
B. Repeating experiments helps scientists to change their data.
200
One of Florida's natural resources is found in the bedrock on which the state rests. Which material makes up this bedrock?
A. Limestone
B. Phosphate
C. Sand
D. Silicon
A. Limestone
200
Clay, cloth, and stone are poor conductors of electricity. Which other material is also a poor conductor of electricity?
A. copper
B. glass
C. gold
D. steel
B. glass
200
Arctic foxes grow new fur with different seasons. They grow brown fur in the summer and white fur in the winter. These changes are examples of which survival characteristic?
A. adaptation
B. hibernation
C. metamorphosis
D. migration
A. adaptation
200
What would most likely happen if your small intestine was not functioning correctly?
A. Your body would not be able to absorb nutrients from food
B. Your body would not be able to store liquid waste
C. Your body would not be able to breathe in oxygen
D. Your body would not be able to move its muscles
A. Your body would not be able to absorb nutrients from food.
300
A student conducted an experiment for a science fair. He asked a question, made a prediction, conducted the experiment, and recorded the data. The data did not turn out as he expected. Why should the student share his experiment at the science fair?
A. The data can be changed to support his prediction.
B. The experiment can be changed to get different data.
C. The student can make a new prediction to fit the data.
D. Unexpected data gives useful information about the question.
D. Unexpected data gives useful information about the question.
300
You have a colorless mineral that you want to identify. You cannot scratch the mineral with your fingernail, which has a hardness of about 2.5, but you can scratch it with a steel nail. The hardness of a steel nail is about 5.5.Based on the information in the table, which mineral could your sample be? 
A. calcite
B. feldspar
C. hematite
D. quartz
C. calcite
300
Which action below demonstrates a transformation of electrical energy into mechanical energy?
A. charging a cell phone
B. warming bread in a toaster
C. lighting a room with a table lamp
D. using a ceiling fan to cool a room
D. using a ceiling fan to cool a room
300
Beetles in a certain population can either be green-colored or brown-colored. A change in the environment has caused the green-colored beetles to become more visible and heavily preyed upon by other animals. Because of this change in the environment, what will most likely happen to this beetle population?
A. The number of brown-colored beetles will increase.
B. The green-colored beetles will reproduce at a faster rate.
C. The green-colored beetles will change their color to brown.
D. The population of green-colored and brown-colored beetles will become extinct
A. The number of brown-colored beetles will increase.
300
Which organ of the body is used to read and understand a sentence?
A. brain
B. kidney
C. liver
D. pancreas
A. brain
400
In science class, Lisa just finished investigating the growth of mold. She stored a piece of white sandwich bread in a plastic bag and drew pictures to keep records of the amount of mold after 3 days, after 6 days, and after 9 days. Which statement is an observation rather than opinion?
A. The picture after 9 days shows the most mold.
B. White sandwich bread would have more mold if stored in the dark.
C. Whole wheat bread would have had less mold than the white bread.
D. A picture drawn after 10 days would show much more mold than on day 9.
A. The picture after 9 days shows the most mold.
400
Earth orbits the sun. Yet the sun appears to move through the sky. For example, the sun always appears to rise in the east and set in the west. What is responsible for this apparent motion of the sun?
A. Earth's size
B. Earth's orbit
C. Earth's rotation
D. Earth's revolution
C. Earth's rotation
400
Cindy is wearing a wool hat. When she removes her hat, some strands of her hair stand up and move away from one another. Which of the following statements best explains why the strands of hair stand up and move apart?
A. Removal of the hat causes the hair strands to create an electrical circuit.
B. Removal of the hat causes the hair strands to have the same charges.
C. Removal of the hat causes the hair strands to have different charges.
D. Removal of the hat causes the hair strands to become magnetized
B. Removal of the hat causes the hair strands to have the same charges
400
The life cycle of a mosquito is based on temperature and daylight. With increased global temperatures, one species of mosquito is beginning to reproduce earlier in the year for a longer period of time. Which phrase below best describes this change in the life cycle of the mosquito?
A. a species losing habitat
B. a species overpopulating
C. a species adapting to changes in an environment
D. a species gaining a competitive advantage over predators
C. a species adapting to changes in an environment
400
The organs in the human body carry out different functions. Which of the following organs works with the lungs to deliver oxygen to the rest of the body?
A. heart
B. stomach
C. pancreas
D. small intestine
A. heart
500
Which statement is necessary in order for a scientific investigation to be valid?
A. The investigation must be able to be repeated by others.
B. The investigation must produce data that can be graphed.
C. The investigation must follow all the steps of the scientific method.
D. The investigation must have a conclusion that matches the prediction.
A. The investigation must be able to be repeated by others.
500
Water can play a role in both the weathering and the erosion of rocks. Look closely at the illustrations below. Which letter represents erosion?
C
500
Which of the following items would best conduct electricity?
A. copper
B. plastic
C. string
D. wood
A. copper
500
Peppered moths are found in two different color varieties: a light-colored variety and a dark-colored variety. Two hundred years ago, light-colored moths were more common than dark-colored moths. The light-colored moths were able to hide better from predators on the trees. As time went by, the building of factories resulted in soot covering the trees, making the trees darker, where the moths hide. How did the peppered moth most likely adjust to its changed environment?
A. more larger-sized moths survived.
B. more light-colored moths survived.
C. more dark-colored moths survived.
D. more smaller-sized moths survived.
C. more dark-colored moths survived.
500
Which of these is NOT a function of the skin?
A. to keep the body at a constant temperature
B. to protect the body against outside invaders
C. to release chemicals that control blood sugar
D. to allow the body to feel when something is touching it
C. to release chemicals that control blood sugar