Learners construct a model of the hydrologic cycle, and observe that water is an element of a cycle in the natural environment. They explain how the hydrologic cycle works and why it is important, and compare the hydrologic cycle to...

Young biologists define reproduction vocabulary terms, answer critical-thinking questions, label a diagram of the human life cycle, and complete a chart comparing mitosis to meiosis. This is a well-balanced worksheet. Even though it...

Short, but sweet, this handout questions the learner on the structures and processes of plant reproduction. Budding botanists draw a dicot seed, label a flower diagram, and describe the functions of different flower parts. It also covers...

In this environmental worksheet, students learn about safer alternatives to hazardous products by playing a Bingo game. Students listen to the item which is called, then mark their boards with a safer alternative. Example: Aerosol...

Discover the environmental and economic impact of global warming. After reading an article, emerging environmentalists identify how different countries are responding to the Kyoto Protocol. They research emission laws and write a news...

Mathematicians analyze the relationships between surface area and volume. They conduct Internet research, conduct various experiments, record the data in a spreadsheet, and graph the results and compare the rate of increase of surface...

An excellent lesson tidal patterns is here for your middle and high schoolers. In it, learners read a tide chart, determine the high and low tides for a particular place, and learn how to correct for differences in tidal times and...

Begin with an online pre-quiz about West Nile Virus. Using a fictional scenario, young epidemiologists read how it is transmitted and examine the stages of the life cycle of a mosquito. They imagine that they are members of the Centers...

Laboratory activities encourage evolutionary biology scholars to consider homologous structures as evidence of common ancestry. They learn how to formulate phylogenic trees and that environment influences to genetic variation. Activities...

Four activities demonstrate the chain reaction of nuclear fission to your physical science fans: falling dominoes, snapping mouse traps, throwing paper wads, and igniting a series of matches. They perform additional laboratory activities...

What is really the best way to get rid of hiccups? Investigate some old wives' tales and folk remedies related to health. Middle schoolers explore the science behind why people might believe these myths to be true and find the real...

Newcomers to chemistry compare hydrogen peroxide to water, realizing that the difference of one oxygen atom significantly affects the chemical properties. Other pairs of compounds and their formulas are also examined. A few chemical...

Investigators use indirect evidence to guess what is occupying a sealed box. You could also use a set of plastic Easter eggs to encase the unknown items. Another terrific activity involves having students drop a pencil on a sheet of...

Chemistry or physical science fledglings get comfortable identifying acids and bases with a variety of pH indicators. They discover that different indicator solutions have different ranges, practice testing soil acidity, and use antacids...

Begin with the classic static electricity demonstrations: the behavior of charged balloons and metal leaves of an electroscope. Then move on to test the electrical conductivity of various materials. Give physics pupils a charge with...