Put real spiderwebs on paper. preserve a spiderweb on paper to explore/look at. or put the black paper behind it so it can be seen in detail and then take a picture so you don't have to destroy the spider's web.
Ed Dancing raisins activities. Lots of fun experiments. I have done this experiment, and seen the entire class become silent out of curiosity. It is a great engagement piece for a lesson, and it can be hands on if you ask for volunteers!
Activity for ages 2 to This simple kids’ science activity is perfect for little mad scientists who like seeing creatures come alive before their eyes. this kids’ science experiment uses baking soda and vinegar to make gummy worms dance.