Holiday STEM Challenge Riddles for Classrooms

🧪 Kick off STEM rotations with wintery puzzles. These holiday STEM riddles hint at circuits, balance, and build challenges.

🔧 STEM Station Riddles (With Answers)

I light up the hallway tree with a tiny snap. Wires, bulbs, and batteries sit in my lap. What am I?

I’m a tower of gumdrops steady and tall, tested with books so I won’t fall. What am I?

Made of craft sticks over paper snow, I carry a toy reindeer from row to row. What am I?

I’m a sled on string that slides from chair to chair. Add a jingle bell and see me glide through air. What am I?

I spin in the window when winter winds play. My blades are folded paper on a blustery day. What am I?

I keep marshmallow snowmen from melting down fast. Wrap me with foil and see the chill last. What am I?

I’m the ramp you build with cardboard and tape, timing toy sleighs on every shape. What am I?

I’m the glider you toss down the hall’s long lane, decorated with snowflakes to test lift and plane. What am I?

I’m a coding game where arrows lead, making penguins waddle at just the right speed. What am I?

I’m a guess about which cookie will sink or float. Record your claim before you vote. What am I?

Post a riddle at each station to spark curiosity before students build.