🔬 Science
3 Thinkapedia articles — short, clear answers written for kids, each with a quick quiz.
Kids ask: Why do we have seasons?What are the states of matter?Why do we have leap years?
🍂Why Do We Have Seasons?We have seasons because Earth is tilted. As Earth travels around the Sun, first one half and then the other leans toward the Sun.🧊What Are the States of Matter?Matter is anything that takes up space. On Earth it is mostly found in three states: solid, liquid and gas.📅Why Do We Have Leap Years?A leap year has an extra day, February 29, because Earth takes about 365¼ days to go around the Sun.