For each group:

• 10 sheets of copy paper (okay if has printing on it, such as paper from recycle bin)
• roll masking tape
• 20 drinking straws
• 20 paper clips
• 2-3 pre-weighed hard cover books (give each group similarly weighted books)
• scissors

For the class to share:

• small scale for weighing textbooks

For class demonstration by teacher:

• 7 tongue depressors or Popsicle sticks
• 7 large brads