When a scientist performed an experiment, she did not get the results she expected. What should she do?
A. change the results
B. assume her results are correct
C. assume her results are incorrect
D. do the experiment again to test her results
What is a solid form of precipitation that sometimes occurs during a thunderstorm?
A. groundwater
B. hail
C. rain
D. runoff
B. hail
Look at the picture below. Which BEST describes what is happening to the metal on the car?
A. a physical change; the metal is rusting
B. a chemical change; the metal is rusting
C. a physical change; the metal is breaking
D. a chemical change; the metal is breaking
B. a chemical change; the metal is rusting
The drawings below show the Florida state saltwater fish and the Florida state reptile. What body structure does one animal possess that the other does NOT possess?
A. backbone
B. jaw
C. scales
D. lungs
Which of the following pairs of body parts perform similar functions in different organisms?
A. gills and lungs
B. liver and lungs
C. gills and exoskeleton
D. liver and exoskeleton
A. gills and lungs
Lauren is investigating the way plant stems transport liquids. She puts a white flower in a glass of water and then adds red food coloring to the water. She concludes that the colored water moved up the stem to the flower petals. If the conclusion is correct, what should happen if Lauren repeats the experiment?
A. She should get the same results.
B. She will follow a new procedure.
C. She should use a different kind of flower.
D. She will probably make different observations
A. She should get the same results
The map shows a climate zone. Which of the following best completes the map legend?
A. polar
B. subarctic
C. temperate
D. tropical
Melissa's school rings a bell to alert students that it is time to start class. When the bell rings, it vibrates. The use of vibrations to send messages is an example of which type of energy?
A. chemical
B. heat
C. light
D. sound
D. Sound
Which of the following animals will most likely survive in its environment?
A. a white mouse in a grassy field
B. a squirrel with light fur in a forest
C. a white wolf on a snowy mountain
D. a moth with light coloration in a forest
C. a white wolf on a snowy mountain
Charlie just ate lettuce from a salad. As the lettuce moves from Charlie's mouth, it travels along the digestive tract where many processes occur. Which organ sends juices that aid in digestion to the small intestine?
A. brain
B. kidneys
C. pancreas
D. stomach
C. pancreas
Beth is doing an experiment to determine how often she should fertilize her bean plants so they will grow best. She is going to test four fertilization schedules as shown in the table. Which variable is Beth testing?
A. brand of fertilizer used
B. amount of fertilizer applied each time
C. frequency that the plant is fertlized
D. time of day the plants are fertilized
C. frequency that the plant is fertilized
Which would be the best to use to heat a building efficiently using Florida's resources?
A. fireplace
B. natural gas
C. solar panels
D. geothermal energy
C. solar panels
William used a hammer to pound a nail into a wooden board. When the nail was about halfway through the board, he stopped and turned the board upside down. The nail stayed in place in the board. Which of the following acts on the nail to keep it in place in the board.
A. friction
B. gravity
C. magnetism
D. weight
A. friction
Organisms are adapted to live in certain environments. Which of the following organisms would have the fewest adaptations for living in Florida?
A. palm tree
B. polar bear
C. orange tree
D. largemouth bass
B. polar bear
The stem provides structure and support to plants. Which animal part has a similar role?
A. brain
B. heart
C. lung
D. skeleton
D. skeleton
Claudia used filter paper to try to separate the salt from salt water. She recorded her thoughts, ideas, and observations during the investigation. For this investigation, which of these statements is a recorded observation that can be tested?
A. I did not put enough salt in the water.
B. It might work with pepper and not with salt.
C. The filter paper did not separate the salt from the water.
D. I should have used water that was a higher temperature
C. The filter paper did not separate the salt from the water.
The drawing shows an object in the solar system. How would you best describe this object?
A. black hole
B. inner planet
C. outer planet
D. asteroid belt
C. outer planet
Ariana uses balloons to investigate static electricity. Which of the following best explains what will happen when she brings two positively charged balloons close to each other?
A. the balloons will move apart
B. one balloon will lose its charge
C. the balloons will come together
D. one balloon will gain a negative charge
A. the balloons will move apart
A seedling germinates. What will develop first?
A. flower
B. root
C. seed
D. spore
B. root
The digestive system has many organs that work together. The liver is one of these organs. Which statement best describes a function of the liver?
A. the liver removes water from unused food particles
B. the liver produces bile to help break down food particles
C. the liver absorbs nutrients from food particles it breaks down
D. the liver stores bile from the pancreas until bile is needed for digestion
Asela places a thermometer in sunlight for 5 minutes and then reads it. Next, she places the thermometer in the shade for 5 minutes and then reads it. How can you tell that Asela is NOT doing an experiment?
A. she did not repeat the activity
B. she did not write anything down
C. there are no variables being explored
D. it is not a carefully controlled test
D. it is not a carefully controlled test
Which of these is made up of gases, dust, and hundreds of billions of stars?
A. a planet
B. a galaxy
C. a solar system
D. a constellation
B. a galaxy
Jason stretches a rubber band between his fingers, as shown below. When he plucks the rubber band, it makes a sound. which of the following best explains why the rubber band makes a sound when Jason plucks it?
A. it heats the air
B. it vibrates the air
C. it absorbs the energy from the air
D. it releases molecules into the air
B. it vibrates the air
What do plants need in order to make their own food?
A. sun, air, water
B. water, sugar, air
C. sun, air, nutrients
D. water, nutrients, air
A. sun, air, water
Which of the following statements correctly compares the large intestine to the small intestine?
A. the small intestine takes in oxygen, and the large intestine takes in blood
B. the small intestine absorbs nutrients, and the large intestine absorbs water
C. the small intestine filters the blood, and the large intestine breaks down food
D. the small intestine processes liquid waste, and the large intestine filters the blood
B. the small intestine absorbs nutrients, and the large intestine absorbs water