There are many kinds of families to celebrate!

Some children have two moms or two dads. This family has two dads. The dads love each other. And they love the children, too!
Photo Credit: CREATISTA/Shutterstock
Chemistry is the study of matter. Matter is anything that … read more
Mount St. Helens is a volcano. It erupted in 1980. … read more
Sometimes a lot of meteors happen in one night. These … read more
© 2026 McGraw-Hill Education. All Rights Reserved.