In this origin of life worksheet, students write answers to five questions. They describe characteristics of the first life forms and how scientists believe oxygen accumulated in the Earth's atmosphere.

Step into the role of a zoo director with several activities about animal training and running a zoo. Kids calculate the amount of food each animal needs, design a habitat for penguins, decide how to breed bottlenose dolphins, and train...

In this life cycle worksheet, 9th graders complete 3 different procedures that distinguish viruses and bacteria and inherited characteristics. First, they read the background excerpt given about bacteria and viruses. Then, students cut...

In this life cycle workbook, 3rd graders complete several different activities in which they analyze different invertebrates, identify arthropods, examine human biology and plants, and study natural environments. 20 different activities...

Processed foods use inorganic compounds for flavoring and preservation. This take-home laboratory challenges scholars to find 20 different compounds identified on the labels of foods to list on their data collection sheet. The activity...

For this classification worksheet, students complete a chart listing the characteristics of each of six kingdoms. They write definitions for three terms.

In this fossil worksheet, students are given fossils and an identification key. They write their scientific names and common names. They also answer questions about fossils.

In this anatomy worksheet, students learn about the heart and it's characteristics. Students monitor their heartbeat in an experiment and then answer a series of questions about what they found.