Physical
Ms. Waterbor has a mixture of steel buttons and wooden beads. The buttons and beads are about the same size and shape, but they are different colors. Steel is made from different metals, including iron. Which of the following is the best way to separate the parts of this mixture?
A. Using strainers with holes of different sizes.
B. Soaking them in water until the wood beads dissolve.
C. Using a magnet to attract the steal buttons.
C. Using a magnet to attract the steal buttons.
Many animals have parts that function similarly to parts of plants. Which part of an animal functions is most similar to a plants stem?
Legs, Mouth, Nose, Skeleton
Skeleton
Mass is a property that can be used to compare objects. The following is a list of some common objects and their masses in grams:
Raisin:1g, U.S. Nickel:5g, Pencil:13g, Stick of Butter:113g, Cell Phone:200g.
If a baseball has a mass of 142 grams, which common object has more mass than a baseball?
Cell Phone
Quartz reflects light differently than talc does. Which property of these minerals is being compared? Cleavage, hardness, luster, streak
Luster
Why does a straw appear to be "broken" or "split" when you put it in a glass of water?
A. Light bounces back as it strikes a surface.
B. Light bends as it passes from one substance into another.
c. More light is taken in by dull substances than by shiny ones.
B. Light bends as it passes from one substance into another.
In a food chain, energy from the sun is transferred from one organism to another. Which of the following food chains shows the transfer of energy from a producer to a consumer to another consumer.
A. Caterpillar-leaf-hawk
B. robin-caterpillar-leaf
C. leaf-caterpillar-robin
C. leaf-caterpillar-robin
A factory releases waste into a nearby river. Coach Weil’s notices dead fish in the river. He infers that the waste are harmful to the fish in the river. Which of the following observations would provide the best evidence to support coach Weil’s inference?
A. When the wastes increase, the number of healthy fish increases.
B. When the wastes increase, the number of healthy fish decreases.
C. When the wastes decrease, the number of healthy fish decreases.
D. When the wastes decrease, the number of healthy fish does not change
B. When the wastes increase, the number of healthy fish decreases.
Slate is a kind of metamorphic rock. How does slate form?
A. From lava that cools and hardens.
B. From sediment that is pressed together over time.
C. From other rock when heat and pressure cause changes.
C. From other rock when heat and pressure cause changes.
Miss Buchanan pushed a box toward Mrs. Rafraf. At the same time, Mrs. Rafraf pushed the box back toward Miss Buchanan with the same amount of force. Which of the following BEST explains what will happen next?
A. The box will not move because the forces are balanced.
B. The box will not move because the forces are unbalanced.
C. The box will move because the forces are unbalanced.
A. The box will not move because the forces are balanced.
An alligator has a strong, muscular tail for swimming fast. A panther has strong leg muscles for running short distances fast. What below describes how the alligators tail and panthers legs are alike?
A. They help the animals hide form predators in their environment.
B. They help the animals catch prey in their environment.
C. They help the animals keep their balance in a rocky environment.
B. They help the animals catch prey in their environment.
Coach Leech and Coach Devlin conducted an investigation to find out how an egg changes when heated. The two coaches cook an egg. They observe that the color and smell of the egg changed when the egg is heated. The coaches concluded that the egg went through a chemical change. Which statement explains why their conclusion is a scientific explanation?
A. Their conclusion is based on an experiment that cannot be repeated.
B. Their conclusion is not based on observations.
C. Their conclusion is based on evidence in the form of observations.
D. Their conclusion is based on opinion.
C. Their conclusion is based on evidence in the form of observations.
Ms. C is making a model of the sun and earth. She forms a large ball of clay to represent the sun in a small ball of clay to represent earth. She holds the large ball in one hand and the small ball by a pencil in the other hand. What should Ms. C do next to represent the passing of 24 hours on earth?
A. Turn the pencil so the small clay ball spins halfway around.
B. Move the large clay ball once around the small clay ball.
C. Turn the pencil so the small clay ball spins completely around once.
C. Turn the pencil so the small clay ball spins completely around once.
Mrs. Wilkinson stuck a potato on the end of a fork with a long handle. She held the potato just over the flames of a campfire. Soon the outside of the potato turned black and started to smell different. Which of the following describes what Mrs. Wilkinson did?
A. She caused a chemical reaction by mixing the potato with another substance.
B. She caused a physical reaction by changing the potatoes temperature.
C. She caused a chemical reaction by changing the potatoes temperature.
C. She caused a chemical reaction by changing the potatoes temperature.
Grapefruit is a common crop in Florida. Grapefruits contain seeds and grow on trees with flat, pointed leaves. In which group of plants would grapefruit trees be classified?
A. Flowering plants with seeds.
B. Flowering plants with cones.
C. Nonflowering plants with seeds.
D. Nonflowering plants with spores.
A. Flowering plants with seeds.
Mr. Testoni conducted an experiment to find out how temperature affects humidity. He repeated his experiment five times. Which of the following is most likely the purpose of repeating his experiment?
A. To change his original prediction.
B. To wait for better weather conditions.
C. To see if he will get similar results each time.
C. To see if he will get similar results each time.
Plants, mica, limestone, and water are four things found in Florida. Which of the following describes something else these four things have in common?
A. They are all minerals.
B. They are all non renewable resources.
C. They are all renewable resources.
D. They are all natural resources.
D. They are all natural resources.
Objects below were found in Mrs. Day's trunk. Some are classified as Conductors of electrical charges and some are considered Insulators.
Steel Can, Aluminum Can, Wooden Block, Silver Ring, Glass, Iron Gate, Rubber Tire, Plastic Ball
From the list, which are only considered insulators?
Wooden Block, Glass, Rubber Tire, Plastic Ball
A. They are necessary for survival
B. They are learned behaviors
C. They are inherited behaviors
B. They are learned behaviors
Mrs. Abbatello conducted an investigation to find out how he affects resting. Which of the following events would provide the best evidence that Mrs. Abbatello conducted a good scientific investigation?
A. Other people do different experiments and get the same results.
B. Other people read about her experiment and results.
C. Other people repeat her experiment and get the same results.
C. Other people repeat her experiment and get the same results.
Organisms can change their environments in many ways. Which of the following is the best example of one kind of Organism helping another by changing the environment?
A. Kudzu vines grow quickly around Beech trees.
B. Earthworms add nutrients to soil that palm trees take in.
C. Humans cause deforestation by clearing Birch forests.
D. Beavers use their teeth to cut down pine trees.
B. Earthworms add nutrients to soil that palm trees take in