Julia Vogel

"Food chains are fascinating! Did you know that all food starts with the sun? Plants use the sun's energy to grow, and then they become energy for animals. Every environment has factors that affect the flow of energy in its food chains--all the way up to you! Discover what plants and animals create the links of food chains and webs in each environment." -- p. 4 of cover.

Describes how to care for fish as household pets.

The first thermometers were very different from the ones used today. Imagine two people measuring the temperature of the same water with different thermometers. Learn about the tools needed to measure how hot or cold things are in this book. Each book in this series helps children learn basic measuring concepts.