Fusion Lesson 1

Scientists make observations, conduct experiments, and draw conclusions. Which statement is true of all scientists?

• Scientists study living things.
• Scientists study the natural world.
• Scientists study items found on Earth.
• Scientists study things found in outer space.

Kim places a cup of water and a cup of cooking oil in the freezer. Every 30 min, Kim checks the cups. She records the time when the liquid in each cup freezes. Which question is Kim investigating?

• Which liquid freezes faster, water or cooking oil?
• Which liquid tastes better frozen, water or cooking oil?
• Which item floats better, frozen water or frozen cooking oil?
• Which item melts faster, frozen water or frozen cooking oil?

Kwan asks people in his class to report how many times per week they recycle. Kwan asks friends in two other classes to collect reports from their classmates, too. What is true about Kwan’s investigation?

• It produces results that don't change.
• It follows the scientific method.
• It involves collaboration.                                    
• It explains why people recycle.

Franz wants to investigate moon craters. He drips water into a shallow pan of flour. He holds the dropper at a different height each time he moves to a new area of the pan. Franz observes that the water drops make dents of differing sizes in the flour. Which type of experiment is Franz conducting?

• classifying
• surveying
• directly studying
• modeling
  

A scientist looks at a graph of the results of his experiment. He draws a conclusion about the results. What is one way the scientist uses his conclusion?

• to decide whether his results are correct
• to decide whether his hypothesis is correct
• to decide whether he should make a different conclusion
• to decide whether he should share his results with others