G07-Science

What skill is used by a scientist when they listen to the sounds that are reproduced by whales?

• interpreting data

• drawing conclusions

• making a hypothesis

• making observations

What is the correct order of the steps in the scientific method?

• Ask a question, analyze results, make a hypothesis, test the hypothesis, draw conclusions, communicate results.

• Ask questions, make a hypothesis, test the hypothesis, analyze results, draw conclusions, communicate results.

• Ask a question, make a hypothesis, test hypothesis, draw conclusions, analyze results, communicate results.

• Make a hypothesis, test the hypothesis, analyze the results, ask a question, draw conclusions, communicate results.

Which of the following hypothesis is written correctly?

• If frozen tennis balls will not bounce as high.

• If I heat up a tennis ball it will bounce high.

• If I freeze a tennis ball, then it will not bounce as high.

• If a tennis ball is frozen, it will not bounce as high as one that is not frozen.

A scientist conducted an experiment to determine how the amount of salt in a body of water affects the number of plants that can live in the water. Which is the independent variable?

• water

• temperature of the water

• amount of salt in the water

• number of plants in the water

A scientist conducted an experiment to determine how the amount of salt in a body of water affects the number of plants that can live in the water. In this experiment, which is the dependent variable?

• water

• temperature of the water

• amount of salt in the water

• number of plants in the water

What term describes a homogeneous mixture primarily composed of two components: solute and solvent?

• Solvent

• Unsaturated Solution

• Solute

• Solution

What do you call a solution where the solvent can still dissolve more solute at a certain temperature?

• Solvent

• Supersaturated Solution

• Solution

• Unsaturated Solution

Which type of solution contains a large amount of solute that, at a specific temperature, can no longer dissolve, causing the extra solute to crystallize rapidly?

• Solvent

• Homogeneous Mixture

• Supersaturated Solution

• Solution

In which type of solution is the solvent still able to dissolve additional solute at a given temperature?

• Solute

• Solution

• Saturated Solution

• Unsaturated Solution

What is the substance that makes up the majority of a solution and is the part where the solute is dissolved?

• Solvent

• Unsaturated Solution

• Solute

• Homogeneous Mixture