Science (2015) Grade(s): 3

SC15.3.3

Explore objects that can be manipulated in order to determine cause-and-effect relationships (e.g., distance between objects affecting strength of a force, orientation of magnets affecting direction of a magnetic force) of electric interactions between two objects not in contact with one another (e.g., force on hair from an electrically charged balloon, electrical forces between a charged rod and pieces of paper) or magnetic interactions between two objects not in contact with one another (e.g., force between two permanent magnets or between an electromagnet and steel paperclips, force exerted by one magnet versus the force exerted by two magnets).

Unpacked Content

Scientific and Engineering Practices

Asking Questions and Defining Problems

Crosscutting Concepts

Cause and Effect

Knowledge

Students know:
  • The size of the force can affect the electrical and magnetic interaction of two objects not in contact with one another.
  • The orientation of magnets can affect the magnetic interaction of two objects not in contact with one another.
  • The repulsion or attraction of magnets can affect the magnetic interaction of two objects not in contact with one another.
  • The presence of a magnet and the force the magnet exerts on other objects affects the magnetic force of two objects not in contact with one another.
  • The electrical charge of an object can affect the electrical force of two objects not in contact with one another.

Skills

Students are able to:
  • Explore electrical interactions between two objects not in contact with one another.
  • Explore magnetic interactions between two objects not in contact with one another.
  • Determine cause-and-effect relationships of electrical interactions between two objects not in contact with one another.
  • Determine cause-and-effect relationships of magnetic interactions not in contact with one another.

Understanding

Students understand that:
  • Cause and effect relationships are routinely identified, tested, and used to explain change.
  • Magnetic and electrical forces affect the way objects interact.

Vocabulary

  • Explore
  • Manipulate
  • Cause and Effect
  • Electrical Interactions
  • Magnetic Interactions
  • Magnet
  • Repel
  • Attract
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