1. Engineering Challenges 4 th Grade

2. Engineer Challenge Rules 1.Show good sportsmanship. 2.Do not laugh at others. 3.No negative comments. 4.Mind your tone of voice. 5.Respect each other. 6.TREAT OTHERS AS YOU WANT TO BE TREATED!

3. Marshmallow and Toothpicks Goal: Construct the tallest structure using only toothpicks and marshmallows. Specifications: You will be given 20 minutes. You will be given 20 minutes. You may only use the materials in your bags and no more. You may only use the materials in your bags and no more. Work in your table groups. Work in your table groups.

4. Paper Airplanes - Distance Goal: Students will make an airplane that travels the farthest distance Specifications: Work in partners Work in partners Made out of one 9"x12” (or smaller) piece of paper Made out of one 9"x12” (or smaller) piece of paper May use cardstock, copy paper, or construction paper May use cardstock, copy paper, or construction paper Scotch tape and small or large paperclips allowed Scotch tape and small or large paperclips allowed Measure distance in cm (using tape measure) Measure distance in cm (using tape measure) Each plane will get two trials Each plane will get two trials

5. Paper Airplanes – Longest Flight Time Goal: Create a plane that can be thrown horizontally and stays in the air the longest amount of time Specifications: Work in partners Work in partners Made out of one 9"x12" (or smaller) piece of paper Made out of one 9"x12" (or smaller) piece of paper May use cardstock, copy paper, or construction paper May use cardstock, copy paper, or construction paper Allowed to use Scotch tape and small or large paperclips for your design Allowed to use Scotch tape and small or large paperclips for your design Each plane gets 2 trials Each plane gets 2 trials

6. Build a Wind Vane Goal: Build a wind vane that swivels easily and makes the most rotations when wind blows. Specifications: Can be made out of everyday materials Can be made out of everyday materials Must show cardinal directions Must show cardinal directions Work in teams of 3-4 Work in teams of 3-4 Allowed to use materials in class with permission Allowed to use materials in class with permission Materials may be brought in from home as well Materials may be brought in from home as well Each team gets 2 trials Each team gets 2 trials

7. Paper & Masking Tape Tables Goal: Design a table that will hold as much weight as possible. Specifications: Groups of 3 or 4 Groups of 3 or 4 Computer Paper – 25 sheets per group Computer Paper – 25 sheets per group 10 yards of masking tape 10 yards of masking tape Cannot tape the table to any other surface Cannot tape the table to any other surface

8. Design a Water Filter Goal: Design a filter that will clean a bottle of dirty water so that the filtered water indicates a neutral pH. Specifications: Each team will get a bottle. Each team will get a bottle. Teams of 3-4. Teams of 3-4. Each team will choose 3-4 materials. Each team will choose 3-4 materials. Filter materials will be provided. Filter materials will be provided.

9. Bridges - Design Goal: Design a bridge using given materials that will support weight over a gap of 4 inches. Specifications: Teams will be given 50 coffee stirrers and 3 yards of masking tape. Teams will be given 50 coffee stirrers and 3 yards of masking tape. Teams of 4-5. Teams of 4-5. Bridge must be free standing. Bridge must be free standing. Only 2 straws can be taped side by side. Only 2 straws can be taped side by side. Bridge should go up and over. Bridge should go up and over.

10. Bridges - Materials Goal: Design a bridge using different materials that will support weight over a gap of 4 inches. Specifications: Groups of 4-5 Groups of 4-5 Must follow given pattern Must follow given pattern Bridge must be free standing Bridge must be free standing No coffee stirrers allowed No coffee stirrers allowed No items can be taped side by side No items can be taped side by side Students must bring materials to be used Students must bring materials to be used

11. Bubble Wand Goal: Design a bubble wand using approved materials that will make the largest bubble. Specifications: Work with a partner. Work with a partner. Can only use materials provided. Can only use materials provided. Each team gets team gets 3 trials. Each team gets team gets 3 trials.

12. Soda Can Support Goal: Use given materials to design a contraption that will hold a full can of soda 6 inches off the ground for a minimum of 30 seconds. Specifications: Teams of 3-4 Teams of 3-4 Each team will get 50 straws, 50 small paperclips, 50 large paperclips, and 5 feet of masking tape Each team will get 50 straws, 50 small paperclips, 50 large paperclips, and 5 feet of masking tape

13. Build a Lift Goal: Design a machine that will lift a piece of candy 6 inches with one human touch. Specifications: Work in teams. Work in teams. Incorporate at least 2 simple machines. Incorporate at least 2 simple machines. Bring needed materials from home. Bring needed materials from home. Can be attached to furniture but can only be touched once to get the machine started. Can be attached to furniture but can only be touched once to get the machine started.

14. Leprechaun Traps Goal: Design a trap using two simples machines that will trap a leprechaun with only one human touch. Specifications: Work in teams Work in teams Use materials gathered from home. Use materials gathered from home. Incorporate simple machines. Incorporate simple machines. One touch should activate the trap. One touch should activate the trap.

15. Build a Greenhouse Goal: Design and build a portable greenhouse that will germinate a seed within a set amount of time. Specifications: Must be portable and easy to set up. Must be portable and easy to set up. Must stand on its own. Must stand on its own. Must open, close, and seal. Must open, close, and seal. Plant should need watering no more than once in ten days. Plant should need watering no more than once in ten days. Must use exactly 10 items. Must use exactly 10 items.

16. Penny Boats Goal: Design a boat that is the most buoyant, using only 30cm x 30cm of aluminum foil. Specifications: Must use aluminum foil cut to specified size. Must use aluminum foil cut to specified size. Pennies will be added one at a time with 5 seconds in between each new penny. Pennies will be added one at a time with 5 seconds in between each new penny. Once a boat is completely immersed in water it is considered “sunk”. Once a boat is completely immersed in water it is considered “sunk”.

17. Egg Drop Goal: Design a contraption that will protect an egg when dropped from a fourth story window. Specifications: Work in teams Work in teams Contraption cannot be larger than one cubic foot Contraption cannot be larger than one cubic foot Egg must be able to be loaded in 10 seconds or less Egg must be able to be loaded in 10 seconds or less Must use materials gathered from home Must use materials gathered from home