Intro to Science Test Review

The ________ is a way scientists answer questions and solve problems.

• scientific theory
• scientific method
• controlled experiment

Which of the following is the hypothesis?

• If people get this new medication, then their heartburn symptoms will improve.
• Will this new medication help reduce heartburn?
• Two groups are compared with this data: 5/50 people in the control group A had their symptoms improve. 35/50 people in the experimental group had their symptoms improve.
• The scientists publish their findings.
• The medication seems to show success in treating heartburn. The hypothesis was correct.

Which of the following is "communicating results"?

• The scientists create a website detailing their findings.

• Will this new medication help reduce heartburn?
• If people get this new medication, then their heartburn symptoms will improve.
• Two groups are compared with this data: 5/50 people in the control group A had their symptoms improve. 35/50 people in the experimental group had their symptoms improve.
• The medication seems to show success in treating heartburn. The hypothesis was correct.

Which of the following is the "conclusion"?

• The medication does not seem to show success in treating heartburn. The hypothesis was incorrect.

• Will this new medication help reduce heartburn?
• If people get this new medication, then their heartburn symptoms will improve.
• Two groups are compared with this data: 5/50 people in the control group A had their symptoms improve. 35/50 people in the experimental group had their symptoms improve.
• The scientists publish their findings.

Which of the following is the experiment/test step?

• Two groups are compared with this data: 10/50 people in the control group A had their symptoms improve. 40/50 people in the experimental group had their symptoms improve.

• Will this new medication help reduce heartburn?
• If people get this new medication, then their heartburn symptoms will improve.
• The scientists publish their findings.
• The medication seems to show success in treating heartburn. The hypothesis was correct.

Plants are being tested to see the effects of a new fertilizer. The plants that get the new fertilizer would be the...

• control group
• the experimental group
• the variable group

Consider this hypothesis: If students are given a new reading strategy, then they will improve their reading abilities. Which of the following statements is true?

• The new reading strategy is the independent variable and the improvement in reading abilities is the dependent variable.
• The improvement in reading abilities is the independent variable, and the new reading strategy is the dependent variable.
• The improvement in reading abilities and the new reading strategy are both controlled variables.

According to the graph, which countries are the 2 lowest in production of oil?

• Saudi Arabia, and China

• Canada and UAE

• USA and Russia

If you would like to create a graph to show how the population of a city is changing over time, what type of graph would be best?

• Pie Graph
• Bar Graph
• Line Graph

You survey 500 people and find out that 25% of them prefer Nacho Cheese Doritos, 30% of them prefer Spicy Nacho Doritos, 20% of them prefer Cool Ranch Doritos, and 25% of them prefer Spicy Sweet Chili Doritos. Which type of graph would likely be used?

• Pie Graph
• Line Graph
• Bar Graph