Kingdoms of All Living Things

In this biology worksheet, students read about macromolecules and elements in living things to answer 56 questions that follow. They also draw the molecular structure of some organic and inorganic molecules.

Kids prefer candy over fried green spinach. King Philip can order five good soups. Mnemonic devices are very helpful for remembering taxonomy. The second lesson in a 10-part series teaches scholars about kingdom, phylum, class, and...

When life gives you mold, make penicillin. Scholars design an inquiry experiment to determine what causes rotting and mold growth. It also covers decomposers and the important role they play for other living things. 

It's a classification sensation! Demystify why we classify using an inquiry activity that helps your class sort things out. Groups begin by classifying a variety of shoes before they research organisms and design their own dichotomous...

How diverse is the world we live in compared to the way things used to be? Young biologists explore diverse organisms and relate the structure of each organism to its ability to survive in our current environmental conditions....

And the prize for oldest living thing on Earth goes to . . . In this video from PBS Digital Studios, viewers learn about the oldest living things on Earth, all over 2,000 years old, such as bristlecone pines, baobab, sea grass,...

We all know what it means for something to be living, right? In the first installment of a five-part video series, viewers first learn about the seven characteristics of life. The video then analyzes these characteristics in relation to...

Do all species evolve? A timeless video that is part of the "Eons" playlist explains the term living fossils. It presents the species that many believe haven't evolved over millions of years. It goes on to break down each assumption and...

Beavers change the landscape and ecosystems in which they live. They also act as a keystone species and need to be protected. Learn more in an engaging video that is part of a larger playlist exploring biology.

DNA carries the code for all living organisms, yet it is made up of only four building blocks. The video explains the structure of DNA down to the nucleotides. It provides the relationships between thymine, cytosine, adenine, and guanine.