In the deserts of Arizona and New Mexico, some tiny creatures show just how quickly natural selection can turn a mutation into an advantageous adaptation. Watch a video about rock pocket mice, who show that one small change can make all...

In this algebra worksheet, students examine the 4 different blood types, and make a graph deciding which blood types are compatible with each other when it comes to donors. There are 9 questions with an answer key.

Students demonstrate how organisms adapt to their environment. They examine prey and predators, natural selection, and adaptations by representing oyster morph.

In this space radiation worksheet, students read about the various types of radiation humans are exposed to. Students answer 5 questions based on the reading. They calculate the amount of energy gained when exposed to a certain amount of...

Fourth graders represent a new predator on a population of colored worms. They mathematically determine the effect of the new predator on the survival and reproductive rates of the worms, simulating natural selection at work.

In this space radiation worksheet, students solve 22 algebraic expressions for "x". They use their answers which correlate with a word in a word bank. They use these words to fill in the blanks of sentences about the effects of space...

Fourth graders, in groups, design a paperclip grasshopper. They determine its ability to survive a prey by jumping high, far, or with a distracting behavior.

For this literacy worksheet, students define the vocabulary terms found on the left side with the definitions given on the right using the subject of reproduction.