Chapter
1

Science Skills
Chapter Preview 
1.1 What Is Science?1.3 Measurement
1.2 Using a Scientific Approach1.4 Presenting Scientific Data
  



A technician tends a reactor that contains bacteria. The bacteria produce proteins that will be used in medicines.
 
 

How do science concepts apply to your world? Here are some questions you'll be able to answer after you read this chapter.

 
 

How Do Scientists Use Their Observations?

Procedure

  1. Observe the liquid that your teacher gives you. Record your observations. CAUTION: Do not touch or drink the liquid.
  2. Use scissors and a metric ruler to cut a 5-cm square of aluminum foil. Loosely crumple the foil and drop it into the liquid.
  3. Use a stirring rod to push the foil below the surface of the liquid. Observe and record any changes that occur in the liquid and foil.

Think About It

  1. Posing Questions   Write three questions about the materials or the changes that you observed.
  2. Designing Experiments   What could you do with the same or other materials to discover an answer to one of your questions?
  3. Communication   Share your proposed experiments with your classmates. What results would you expect to observe?

 
 
 
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