American Chemical Society
Temperature Affects Density
Different substances can have different densities, but can the same substance have different densities? Lesson explores the effect of temperature on the density of water. Extension idea connects the concept of how melting ice in lakes...
Curated OER
Density Dynamics
Students set up working models demonstrating lake turnover and the formation of deep water masses in the oceans.
Curated OER
Lake Strata and Internal Waves
Use the classic density demonstration of placing a cola, a clear soda, and a diet soda into a tank of water. Then let learners attempt to pour some of the soda into layers in a clear container. The procedure explains a thermocline, and...
Curated OER
Final Project: Food and Nutrition Class
Students plan appropriate diets for themselves and others using the USDA Dietary Guidelines. They indicate their average cost of food at home on a thrifty plan and prepare a one-week menu plan including breakfast, lunch, dinner, and a...
University of Southern California
Design and Test an Air Lift Siphon
Build an air lift siphon using your mad physics skills! Learners first investigate the importance of circulating water in aquaponics systems. They then use density to their advantage as they engineer an air lift siphon
Curated OER
Density Stratification and Ocean Circulation
Students examine how circulation currents of the ocean. They use a tub of hot and cold water to demonstrate the currents. They discover how salinity and temperature of water affect its movement.
Curated OER
Water
Students conduct a series of investigations on the unique properties of water. In this general science lesson, students explain what causes water's surface tension. They explain the different stages in the water cycle.
Curated OER
Biomanipulation
Young scholars explore the effects of aquatic trophic relationships on water transparency. They observe and explain the effects of reducing nutrient inputs on agal density on water transparency.
Curated OER
Manage Soil
Students identify and classify soil ypes according to data on the soil triangle. Given examples, students identify soil conservation practices, using criterion assessment instrument. When giving a case situation involving soil...
Curated OER
"Study Finds Soft Drink Consumption Up, Health Down"
Students compare the nutrients in soda with those in milk after reading an online article. They identify micronutrients that are important in the teen years and those that help stave off disease.
Curated OER
Pipeline to the Coral Reefs
Young scholars discuss the relationship of density to stratification. For this marine science lesson, students create a model of upwelling events using cold and warm water. They discuss how water phenomena affect coral reefs.
Curated OER
What is an Estuary?
Students define the terms estuary and watershed. They conduct an experiment to determine the density differences between fresh and saltwater. They examine the salinity distribution of the Peconic Bay Estuary.
John Hopkins University
Diets and Influence on Food Choice
From start to finish, this is a truly excellent lesson plan addressing the epidemic of diet-related disease in the United States. Learners begin with a reading excerpt of detailed information on trends in the American diet and the...
Curated OER
Milk: A Practical Application
Explain the coagulation and coalescence processes associated with milk protein and cheese. List the components of milk and explain how each component is dispersed in the milk. Describe what happens when milk protein is coagulated Discuss...
Curated OER
Phytoplankton in the Gulf of Maine
Students use satellite data to see the correlation between sea temperature and sunlight in the Gulf of Maine. In this phytoplankton lesson students use Excel to analyze data.
NOAA
Currents
Learn how ocean currents are vital to humans and marine life. The eighth installment of a 23-part NOAA Enrichment in Marine sciences and Oceanography (NEMO) program, focuses on ocean currents and how they affect global climate. The...
NOAA
Currents
A deep ocean current circles the globe at a force that is greater than 16 times all the world's rivers combined. Groups analyze the effects of submarine topography on deep ocean current speed. They then determine how this speed affects...
Kenan Fellows
How Does an Unhealthy Diet Influence our Health and Well-Being?
You are what you eat, or so they say! After surveying family and friends on a week of eating habits, learners analyze the data for patterns. They compare different variables such as fats and cost, fats and calories, or fats and LDLs.
Curated OER
Tracking Narwhals in Greenland The Ocean Unicorn
Students study the ecology, habitats, geographic range and feeding habits of narwhals. They determine at least three reasons for the decline in the narwhal populations and complete the accompanying worksheets.
Curated OER
Frozen Out
Students investigate how climate changes affect top predators in Arctic marine ecosystems. Students complete a worksheet and write a report based on their responses to a scientific paper.
Curated OER
Oil Spill
Young scholars explore an important role of environmental engineers by studying the Exxon Valdez oil spill. They experiment with different strategies in order to clean up their own manufactured oil spill.
Curated OER
PICTURE PERFECT PYRAMID
Students create a model of the USDA's Food Pyramid Guide, using shoe boxes. They bring an assortment of shoe boxes from home. Students are given a copy of the "Food Guide Pyramid." They wrap boxes for the bread group in white, the...
Curated OER
The Future of Arctic Sea Ice
Students research about the importance of sea ice to world climate and sea organisms. In this earth science lesson, students create a model of present and future Arctic sea ice communities. They discuss how ice melting affects...
Curated OER
Milk: A Practical Application
Students examine the impact of the physical and chemical properties of milk and its use as an important food.