Reflection: Rigor Physical & Chemical Changes - Section 2: Explore


Tools can help us with an investigation and are important for accomplishing a task. Students need to be able to use tools when conducting an experiment.

The best way for students to feel comfortable and confident using tools is to actually use the tools. I like to provide a variety of opportunities for students to interact with "science tools" such as a triple beam balance, graduated cylinder, metric ruler, and thermometer. Using these basic "science tools" helps students to gain knowledge, build skills, and become accurate when measuring. I have found that the more times my students interact with "science tools", the better they become at naming the tool, identifying its purpose, using appropriate tools strategically, and most importantly, attending to precision when measuring. Measuring is a life skill. Using "science tools" will help students to develop that skill in the laboratory.

  Using Tools In Science
  Rigor: Using Tools In Science
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Physical & Chemical Changes

Unit 8: Matter and Atoms
Lesson 9 of 12

Objective: SWBAT explain the difference between a physical change and chemical change.

Big Idea: Sometimes it's obvious, sometimes it's not. Learn to notice the signs of a physical or chemical change to become an expert.

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