This site has students understanding that: 1) Without air resistance, all objects would fall at the same acceleration, regardless of mass. 2) Gravity is the force that causes objects to fall. 3) Air resistance, a type of friction, works against gravity to decrease the acceleration of a falling object. Included in this two day lesson plan are the objectives, needed materials, procedures, adaptations for older students, discussion questions, a rubric for assessment, extension activities, suggested reading, links to other sites, vocabulary, and academic standards. Students can click on a vocabulary word to hear its pronunciation and a sentence using the word. Teachers can link to Teaching Tools to create custom worksheets, puzzles, and quizzes. A printable version can be downloaded. Teachers can purchase the video, The Invisible Force, and download comprehension questions and answers.


  • Science > General

Education Levels:

  • Grade 1
  • Grade 2
  • Grade 3
  • Grade 4
  • Grade 5
  • Grade 6
  • Grade 7
  • Grade 8
  • Grade 9
  • Grade 10
  • Grade 11
  • Grade 12


Informal Education,Middle School,Force,NSDL,Grade 6,Science,Grade 8,oai:nsdl.org:2200/20120114184256264T,Gravity,NSDL_SetSpec_1007936,Motion,Forces and motion,Hands on science,Friction,Vocational/Professional Development Education,Physical science,Chemistry,Physics,Momentum,Grade 7



Access Privileges:

Public - Available to anyone

License Deed:

Creative Commons Attribution Non-Commercial Share Alike


This resource has not yet been aligned.
Curriki Rating
'NR' - This resource has not been rated
'NR' - This resource has not been rated

This resource has not yet been reviewed.

Not Rated Yet.

Non-profit Tax ID # 203478467