The trapdoor is very cool. The trapdoor is a spider that hides in a tunnel then jumps out and eats its prey. It has two fangs and it leaps on and into the prey with its fangs! OUCH!

1) In what ways do you use simple machines in your life? Identify two or three and explain them. 2) T'sai Lun was inspired to make paper by observing the way a wasp builds its nest. Think about some aspect of nature that you have noticed (whether it be an animal behavior, a plant process, … Continue reading The Sun and Simple Machines