Seasons

The question you will answer in this FACTivity is: How are human life and frog life similar, and how are they different? Materials: Paper Pencils Crayons or markers for illustrations

As you have learned in “Owl-ch!,” humans are endotherms who, like other mammals and birds, must maintain a constant internal temperature in changing air temperatures. In this FACTivity, you will...

Water temperature helps regulate aquatic ecosystems, and, for many aquatic organisms, life-cycle phases are tied to water temperature. Salmon eggs, for example, generally require a certain number of degree days...

Natural Inquirer Readers for students in grades K-2 focus on a scientist and their research. In this Reader, readers meet Dr. Scott Goodrick who studies weather and wildfires.

Natural Inquirer Readers for students in grades K-2 focus on a scientist and their research. In this Reader, readers meet Dr. Scott Goodrick who studies weather and wildfires.

In this FACTivity, you will imagine what sugar maple trees in the northeastern United States might look like at four different times during the fall. Materials: Four sheets of plain...