How Many Drops?
In this lesson and its associated activity, students conduct a simple test to determine how many drops of each of three liquids can be placed on a penny before spilling over. The three liquids are water, rubbing alcohol, and vegetable oil; because of their different surface tensions, more water can be piled on top of a penny than either of the other two liquids. However, this is not the main point of the activity. Instead, students are asked to come up with an explanation for their observations
Making Decisions: Packaging and the Environment
This activity has students redesign and justify the packaging currently used in some consumer products. Design criteria include reducing the amount of packaging material by 25%.
Floaters and Sinkers: Curricular Unit
This curricular unit introduces students to the important concept of density. The focus is on the more easily understood densities of solids, but students can also explore the densities of liquids and gases. Students devise methods to determine the densities of solid objects, including the method of water displacement to determine volumes of irregularly-shaped objects. By comparing densities of various solids to the density of water, and by considering the behavior of different solids when place
To learn how friction affects motion, students explore how different textures provide varying amounts of friction to objects moving across them. They build a tool to measure the amount of friction between a note card and various surfaces by measuring the distance that a rubber band stretches. They experiment with a range of materials to determine which provides the least/most friction.
Printable worksheet that requires students to write simple postcards. It can be expanded as pupils' confidence grows.
Les Couleurs - Quiz
How well do you know your colors in French?
Cape Hatteras Flyby 2
A flyby from Albemarle Sound to the Cape Hatteras National Seashore in North Carolina, using Landsat data
San Francisco Onion Layers (432) and zoom to San Jose
An animation of Landsat spectral bands, followed by a zoom to San Jose, California.
The most stunning sport moment
You can take part in an informal conversation among colleagues about personal interests and hobbies.
PediNeuroLogic Exam: Newborn: Normal: Tone - Arm Recoil
Arm recoil tests tone and action of the biceps. The arms are held in flexion against the chest for a few seconds, then are quickly extended and released. The arms should spring back to the flexed position. The hypotonic infant will have slow incomplete recoil. Asymmetry to this response with lack of recoil would be seen with Erb's or brachial plexus palsy. A neuroscience tutorial focusing on those aspects of the pediatric neurological examination that are unique to the child's nervous system, wi
Construct And Test Roofs for Different Climates
We design and create objects to make our lives easier and more comfortable. The houses in which we live are an excellent example of this. Depending on your local climate, the features of your house will be different to satisfy your particular needs; protection from hot, cold, windy, and/or rainy weather. Students should be aware of the different types of roofs found on various houses in different environments throughout the world. This can be done with books and photos. Models of the houses will
Nutritional Health,Food Production,and the Environment
This course provides an understanding of the complex and challenging public health issue of food security and in a world where one billion people are under-nourished while another billion are overweight. Explores the connections among diet, the current food production system, the environment and public health, considering factors such as economics, population and equity. Case studies are used to examine these complex relationships and as well as alternative approaches to achieving both local and
This patient education program explains the causes and types of anthrax. It also reviews the symptoms, diagnosis, treatment, and prevention of anthrax through vaccination and awareness of bioterrorism. This resource is a MEDLINEplus Interactive Health Tutorial from the National Library of Medicine, designed and developed by the Patient Education Institute.
Solar Sigmoid: Zoom In, Move Around, Pull Back
Solar sigmoid on the sun indicating possible pending coronal mass ejection.
Seasonal NDVI for Africa. 1981-2000 averaged without month notation.
Seasonal NDVI for Africa. 1981-2000 averaged without month notation. 15 frames-month
The Magnetosphere - Earth Raises its Shields
A view of a computer-generated model of the Earth's magnetosphere. Semi-transparent surfaces represent particle density (red is high, blue is low) and silvery tubes represent the magnetic field lines. In this particular model, the solar wind has an ambient density of 8.35 particles-cm^3. The isosurfaces are then red (>17 particles-cm^3), yellow (>12 particles-cm^3), green (>8.6 particles-cm^3) and blue (<1.0 particle-cm^3).
Gli italiani e il tempo libero CL: my hobbies
At the completion of this lesson you will be able to talk about the leisure activities of the Italians. You will read a short text and indicate what types of hobbies Italians have. You will pay special attention to declinations of third-person plural. Then, you will fill in the text with other words A word list may possibly help you with this. You will then answer yes or no questions; lastly, you will answer open-ended questions.
Monroe: Era of Good Feelings? (4:36)
This video is a biography about the presidency of James Monroe and the
Monroe Doctrine. Despite a relatively easy presidency, Monroe created
much controversy during his time in the office including the beginnings of the slavery issue and battles with Spain about Florida. This is a good overview of this time and provides insight into the events that were to follow.
Clouds and Precipitation by StudyJams
Clouds are made of water vapor and dust. When the water gets too heavy, it falls back to the Earth. Clouds are named according to their shape, such as cumulous, or puffy, stratus, or blanketed, and cirrus, or high and cold. Learn more about the types of clouds with this slide show from StudyJams. Vibrant images are set to music with information written under each photo. A short, self-checking quiz is also included with this link.
Gravity and Inertia - by StudyJams
Gravitational force is the constant force of attraction between the masses of two objects. The attraction between objects and the Earth is called gravity. Weight is caused by gravity: it is the measurement of gravity's force on an object's mass. Learn more about gravity and inertia with this cartoon animation from StudyJams. A short, self-checking quiz is also provided with this link.