In this cell reproduction worksheet, learners will discover that when a cube doubles in size, the surface area grows by four times and the volume grows by eight times. Students will use this information to understand the limits to cell...

Engage young biologists in exploring the mysteries of life with this collection of hands-on activities. Enlisting the help of numerous digital resources, students get an up-close look at the structure of plant and animal...

Two activities explore the concept of size, especially small sizes down to the nano. Scholars practice determining volume, mass, and density and calculate exponential increases and decreases. They then predict and test the effect of size...

Second graders discuss experiences of watching a rocket launch either on television or in person before making paper rockets. They make and color rockets which they attempt to launch using a strong breath blown through a straw at the...