11/29 - 12/13: Hour of Code Speed Challenge
11/29 - 12/13: Cookie Speed Challenge
11/15 - 11/29: Tiny Things Speed Challenge
11/8 - 12/6: Edible Art Challenge
11/8 - 12/6: Paint Challenge
11/8 - 12/6: Hide It Challenge
11/8 - 12/6: Laser Challenge
11/1 - 11/15: Soapmaking and Candlemaking Speed Challenge
10/18 - 12/13: Unusual Uses Contest
10/18 - 11/1: Home Cooked Speed Challenge
10/18 - 11/15: Audio Challenge
10/18 - 11/15: Sewing Challenge
10/18 - 12/13: Reclaimed Materials Contest
10/11 - 12/6: Made with Math Contest
10/4 - 10/18: Pumpkins & Gourds Speed Challenge
9/20 - 10/18: Plastic Challenge
9/20 - 11/15: Organization Contest
9/20 - 11/15: Robots Contest
9/20 - 10/4: Rocks, Gems, and Stones Speed Challenge
9/20 - 10/18: Retro Tech Challenge
9/6 - 10/4: 3D Printed Student Design Challenge
9/6 - 10/18: Back to School: Student Design Challenge
9/6 - 11/8: Halloween Contest
9/6 - 9/20: Soup & Stew Speed Challenge
8/23 - 10/18: Tinkercad Student Design Contest
8/23 - 11/1: Micro:bit Contest
8/23 - 9/6: Jigs & Rigs Speed Challenge
8/23 - 9/20: Make it Move Challenge
8/23 - 9/20: Fashion Challenge
8/23 - 10/18: Lamps and Lighting Contest
8/23 - 10/18: Space Contest
8/9 - 8/23: The Elements Speed Challenge
7/26 - 8/23: Make it Fly Challenge
7/26 - 9/20: First Time Author Contest
7/26 - 9/20: Metal Contest
7/26 - 8/9: Fruit and Veggies Speed Challenge
7/26 - 8/23: Maps Challenge
7/12 - 7/26: Water Speed Challenge
6/28 - 7/26: Stone, Concrete, Cement Challenge
6/28 - 8/23: DIY Summer Camp Contest
6/28 - 7/26: Summer Fun: Student Design Challenge
6/28 - 8/23: Backyard Contest
6/28 - 7/12: On a Stick Speed Challenge
6/28 - 8/23: Fandom Contest
6/28 - 7/26: Pets Challenge
6/14 - 6/28: Barbecue Speed Challenge
5/24 - 6/7: For the Birds Speed Challenge
5/24 - 6/21: Explore Science Challenge
5/24 - 7/19: Colors of the Rainbow Contest
5/24 - 7/19: Arduino Contest
5/24 - 6/21: Home Decor Challenge
5/24 - 6/21: Box Challenge
5/10 - 5/24: Clocks Speed Challenge
4/26 - 6/21: Make it Real Student Design Challenge #3
4/26 - 6/7: Organizers: Student Design Challenge
4/26 - 5/10: Sticky Stuff Speed Challenge
4/26 - 6/21: Toys & Games Contest
4/26 - 6/21: Furniture Contest
4/26 - 5/24: Big vs Small Challenge
4/26 - 5/24: Fix It Challenge
4/12 - 4/26: Cheese Speed Challenge
3/29 - 5/24: STEM Contest
3/29 - 4/26: Role Playing Game Challenge
3/29 - 4/12: Cardboard Speed Challenge
3/29 - 4/26: Leather Challenge
3/29 - 5/24: CNC Contest
3/29 - 4/26: Gardening Challenge
3/15 - 3/29: Zipper Speed Challenge
3/15 - 3/29: Stuffed Toys Speed Challenge
3/4 - 4/1: Make it Real Student Design Challenge #2
3/1 - 3/29: Sculpt & Carve Challenge
3/1 - 3/29: Simple Machines Challenge
3/1 - 3/15: Pi Day Speed Challenge
3/1 - 4/26: Trash to Treasure Contest
3/1 - 4/26: Woodworking Contest
3/1 - 3/29: Fiber Arts Challenge
2/15 - 3/1: Bread Speed Challenge
2/1 - 3/1: Jewelry Challenge
2/1 - 2/15: Tinfoil Speed Challenge
2/1 - 3/29: Microcontroller Contest
2/1 - 3/29: Paper Contest
2/1 - 3/29: Automation Contest
2/1 - 3/1: Self-Care Challenge
1/18 - 2/15: One Pot Meals Challenge
1/18 - 2/1: Sew Warm Speed Challenge
1/4 - 1/18: Knitting and Crochet Speed Challenge
1/4 - 3/1: Make it Glow Contest
1/4 - 3/1: First Time Author Contest
1/4 - 2/1: Out of the Box Challenge
1/4 - 2/1: PCB Challenge
11/23 - 12/7: Holiday Decorations Speed Challenge
11/16 - 1/11: Block Code Contest
11/9 - 11/23: Cookies Speed Challenge
11/9 - 12/7: Plywood Challenge
10/26 - 11/9: Candy Speed Challenge
10/19 - 12/14: Plastic Contest
10/19 - 11/2: 1000th Contest
10/19 - 12/14: Battery Powered Contest