How does nature select some adaptations over others? Scholars experiment picking up seeds with two different types of tools simulating beaks. After practicing, they experience a drought where one type of seed suddenly isn't available....

The density of the huge planet of Saturn is 0.7 g/cm3, which means it could float in water! In the second part of 22, science pupils explore the size and order of the planets. They then calculate weight and/or gravity and density of...

In this questionnaires and analysis learning exercise, learners design a questionnaire and then select a sample. They organize and analyze data. This four-page learning exercise contains 1 multi-step problem. Explanations and examples...

In this radish seed worksheet, students fill out a lab packet having to do with radish seeds. Students answer short answer questions, charts, and draw graphs of their results.

Ingredients in your shampoo are toxic enough to kill plants. The 16th installment of the series of 24 tests the toxicity level of various concentrations of SLS, a chemical found in nearly all shampoo. Learners prepare percent solutions...

In this plant reproduction learning exercise, students will conduct an experiment to see how much pollen a flower makes. Then students will use their data collected to complete 3 short answer questions.

In this fossils learning exercise, students will read about the hobby of fossil collecting and the tools needed for collecting fossils. Students will complete 3 short answer questions based on their reading.

In this moon worksheet, learners read the book The Moon Book and list facts about the moon and draw eclipses. Students list 10 facts and draw 3 kinds of eclipses.

Online adventure game consisting of five consecutive episodes where you become a member of a team of scientists who investigate pain relieving drugs to see if they are safe. Episodes should be played in order; however, they can be...