How much preparation time should I allow the students?
Provide the event rules one week before competition day. Although the students will not find out the exact materials or amounts until competition day, they can assemble their team and start brainstorming ideas. Require the teams to sign up one week ahead of time so you know how many junk boxes to prepare. See our project check list for a complete list of tasks.

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How much time is needed for project creation?
On the day of the event, allow 5-10 minutes of brainstorming time and require the students to complete the Think About It page. Once they have finished the page, allow 45-60 minutes of construction time depending on the project. You may want to have project creation run over multiple classroom periods.

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How much time is needed for project testing?
The time required for testing the projects varies depending on how many groups you have competing and the number of trials each team is allowed. If you are able to recruit parent volunteers or other teachers, you can test several groups at the same time.

Estimates:  
2 hours (2-3 class periods) - Super Slingers, Bottle Blasters, Weakest Link, Battle of the Boats, Rocket Rally, Zoom Machines, Drop Zone, Super Subs
3 hours (3-4 class periods) - Super Structures, Gumball Machine, Marble Maze, Whirling Wonders, Bridge Challenge

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How many students are allowed on one team?
It works best to limit the teams to 2-3 students. Feel free to adjust the teams to fit your needs. If you have large classes or a limited amount of supplies, you may need limit teams to 4-5 students per group.

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Do I have to provide all the supplies listed on the Teacher Notes page?
No. The supply lists are provided to give you an idea of the amounts and types of materials you might provide. You can modify the supply list depending on the amount of "junk" you have available. If you don't have one of the items, substitute a similar item or provide more of another item. You may also provide a larger amount of any item, such as tape or paper, if you feel that the amount listed is not enough for your students.

The supplies listed are recommended for one group not an entire classroom.  However, we rarely give the students all the materials on the list!  Make it more challenging by limiting the amount of supplies your provide.

Keep in mind that the projects on this site reflect the Junkyard Wars television show where contestants have a junkyard filled with lots of materials. By providing a variety of materials, rather than a few items, students have a lot of options and are challenged to select the best materials for that project. As a result, they don't use everything in the box and end up finding some unique uses for the junk.

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How can I get all the supplies on a limited budget?

Hold a junk drive! Create a list of items you need and send home notes with your students asking for donations of junk. Your junk boxes will be overflowing with materials! Several teachers have told us neighbors in their communities save junk — such as plastic containers, thread spools, film canisters, toilet paper rolls, and other materials — for their classrooms throughout the year.
 
Ask local stores and restaurants to save film canisters or donate supplies, such as straws, cups, and paper place mats. Some stores may give you a discount on materials or tools for your projects. Local businesses also may be interested in sponsoring an event by providing money and/or supplies in exchange for a bit of publicity!
 
Provide a supply list for each team and require them to bring the materials (or a few items) on competition day. Students refer to this as a "BYOJ" or "Bring Your Own Junk"!
 
Don't throw away your junk! Recruit students to help you "trash" old projects. Tear apart the old projects and save all the materials that can be recycled or reused. You will save money and teach students a few lessons on conservation in the process.