Mr. Brown wonders how minerals affect animal growth and decides to conduct an experiment with his chickens. He begins with 3 buckets containing exactly the same amount of chicken feed and then adds the same amount of 2 different minerals to two of the buckets. He adds calcium to one bucket, adds magnesium to another bucket, and doesn’t add any minerals to the third bucket. What scientific term is used to describe the mineral placed in each bucket?

• Control

• Hypothesis

• Outcome variable (dependent variable)

• Test variable (independent variable)

The table indicates the amount of time that four different brands of batteries worked in a flashlight. Which of the following statements is supported by this information?

• Brand L caused the light to shine farther than the other brands tested.

• Brand M lasted longer than the other brands tested.

• Brand N gave off a stronger light than the other brands tested.

• Brand O was more expensive than the other brands tested.

Which of these revolves around a planet?

• An asteroid

• A star

• A comet

• A moon

The freezing and thawing action of water affects a rock by

• Transforming the rock into igneous rock

• Chemically changing the rock

• Gradually breaking down the rock into smaller pieces

• Leaving behind sedimentary particles from evaporated solutions

Daunte performed several tests on a mineral to help identify it. The picture below shows one of the tests he performed.

Which property of a mineral will he be able to identify using this test?

• Attraction to magnets

• Streak color

• Hardness

• Cleavage

A certain day in Miami has a temperature of 85 °F. Weather forecasters are predicting that the air pressure and temperature will drop during the day. Which type of weather is most likely in the late afternoon?

• Rain

• Sunny

• Snow

• Sleet

Humans interpret seeing, hearing, tasting and smelling in the:

• Brain

• Spinal Cord

• Receptors

• Skin

What major function does the human skin and the waxy outer layer of a plant’s leaf share?

• Oxidation

• Protection

• Respiration

• Variation

This diagram shows a food chain. Which term describes the role of the corn in this food chain?

• Carnivore

• Consumer

• Herbivore

• Producer

Armadillos and coral snakes both live in Florida. When an armadillo is threatened, it curls up and looks like a ball. A coral snake curls its tail into a tight spiral and holds it up when an enemy is near. Based on the information given, in what way are these two animals similar?

• They spend a lot of time in the water.

• They have ways to protect themselves.

• They use their bodies to attack their enemies.

• They have hard outer layers of skin for protection.