36 months old
Happy birthday -- your child is three! She’s probably using three- to four-word sentences (“Go outside now!”), and why might just be her favorite word. Three-year-olds want to know how everything works, and aren’t afraid to ask questions. Don’t think that means you need to have all the answers though. You and your child can have a lot of fun simply pondering and exploring her questions together. So when your child asks, “Why is the sky blue?” try saying, “I don’t know. What do you think?” before launching into a scientific explanation.