Go on a bug and spider walk with your child around your yard or neighborhood. Preschoolers typically are fascinated by bugs and spiders, but adults sometimes feel uncomfortable around them. Try to set aside any discomfort you may feel when doing this activity.
Take some paper and crayons with you. Look carefully in grass, around the edges of pavement, and along walls, buildings, and fences and encourage your child to do so as well. When you see a bug or a spider, look closely at it together and talk about what you see.
Invite your child to record what you find by drawing the creatures, or just by making a mark for each new one you find. Go out another day, maybe a warmer day or early in the morning, and see if you can find more creatures!