In this part of the unit, students are exploring how global temperatures have changed over the past hundred years.  Students will examine tables and graphs about global temperatures and carbon dioxide levels, human consumption of food, and human consumption of natural resources.  They will find patterns in the graphs.  Based on this data, students will construct an argument about how human activities (increase in population and consumption of natural resources) cause global temperatures to increase.

This interactive activity demonstrates and provides explanation for how acid rain affects aquatic ecosystems and how certain species react to decreased water quality as pH becomes lower. The activity also explains the pH scale as a measure of acidity.

Students conduct a simple experiment to model and explore the harmful effects of acid rain (vinegar) on living (green leaf and eggshell) and non-living (paper clip) objects.

Students are introduced to the differences between acids and bases and how to use indicators, such as pH paper and red cabbage juice, to distinguish between them.

In this lesson, students identify which factors in an environment are biotic or abiotic factors and evaluate their effect on other organisms living within the environment.

In this activity students compare plant growth under two conditions. Through the activity students will observe the life cycle of seed plants and determine in which conditions plants grow well. Students will also collect data such as number of days to germination for each plant and daily plant height.

In this lesson students will explore adaptations that animals have that help them survive in their environment. Students will build understanding by identifying adaptations as described in two folk tales and sorting descriptions of adaptations into categories of their choice. They will then compare and contrast the snowshoe hare and the cottontail rabbit. Students will work in groups to research and organize information they gather about the two animals, summarizing their research in their science journals. In an associated activity, "Camouflage: An Adaptation of Survival," students simulate the use of camouflage as a survival adaptation.

In this lesson, students will learn about animal coverings and what the coverings do for the animals in their environment.

Students are introduced to the classification of animals and animal interactions. Students also learn why engineers need to know about animals and how they use that knowledge to design technologies that help other animals and/or humans. This lesson is part of a series of six lessons in which students use their growing understanding of various environments and the engineering design process, to design and create their own model biodome ecosystems.

Using gumdrops and toothpicks, students conduct a large-group, interactive ozone depletion model. Students explore the dynamic and competing upper atmospheric roles of the protective ozone layer, the sun's UV radiation and harmful human-made CFCs (chlorofluorocarbons).

Nine choices on a choice board for student projects.  Can be "pick one" or more than one. Currently based on the topic Environment, but can easily be remixed to any topic.

Students will make word associations while looking at an American flag. Students will then compare the American Flag with Oldenburg's "The Old Dump Flag, 1960" concentrating on proportions, materials, color, movement, shape, etc. Discussion will proceed to Oldenburg's idea of "grand symbols". Students will then collect recyclable items, flatten them, and sculpt a "grand symbol" of their community by tearing, crumpling, folding and spray painting the work. Students will divide into groups and create a performance piece incorporating all the objects made by group members.

Students observe and discuss a simple balloon model of an electrostatic precipitator to better understand how this pollutant recovery method functions in cleaning industrial air pollution.

This video provides information about the causes and effects of Earth's changing climate, specifically focusing on wildlife populations and the impact global warming has on habitats.

Some bird species appear to respond to extreme weather changes in their native habitat by moving to more hospitable environments. This article discusses the role of NASA satellites, along with field and citizen scientists, in studying that movement. The article also includes an activity on constructing a bird feeder. The Climate Kids website is a NASA education resource featuring articles, videos, images and games focused on the science of climate change.

This series of 18 captioned images depict several weather and climate-related events such as flooding, drought, glacial retreat and wind erosion. The Climate Kids website is a NASA education resource featuring articles, videos, images and games focused on the science of climate change.

This question is addressed through a series of questions and answers, each providing related introductory information such as how climate change is studied, the history of Earth’s climate, and the effects of climate change on Earth’s geology and biology. The Climate Kids website is a NASA education resource featuring articles, videos, images and games focused on the science of climate change.

Use the imbedded sliding scale to observe changes in sea ice distribution, carbon emission levels and average global temperatures over time, as well as the effects of variations in sea level rise along coastal regions. This interactive is part of the Climate Kids website, a NASA education resource featuring articles, videos, images and games focused on the science of climate change.

This article describes six collaborative and real data projects that engage elementary students in collecting and sharing local data and communicating with students across the country and world.

Students use a sponge and water model to explore the concept of relative humidity and create a percent scale.