Does lowering the corporate tax rate help create jobs in the United States? Learners explore the top pro and con arguments and quotes relating to the issue. They read background information about the creation of the federal corporate...

Humans have only inhabited the earth for a fraction of the time that life has existed. Young scientists explore the facts about the emergence of life on Earth with an interactive resource. While highlighting different types of life, the...

There are more than 600,000 asteroids in our solar system. Pupils analyze images of two asteroids in order to determine if they are the same age. They count craters for each asteroid and compare numbers. 

In the 19th activity of 22, learners determine if distance from a light source affects photosynthesis. Participants capture oxygen in straws and find that the amount of water the gas displaces is proportional to the rate of photosynthesis.

Did you know scientists can tell the age of an asteroid by looking closely at its craters? This final activity of a six-part series focuses on two asteroids, Gaspra and Ida, in order to demonstrate the concept of dating asteroids....

Learners examine strategies an author uses to provide qualitative and quantitative aspects of life in China. They apply the strategies to their own writing.

Assess the Cash for Clunkers program with your scholars through 3 political cartoons, which they will analyze to determine who drew it best. Background information helps pupils gain context to assess the cartoons, and 3 talking points...

Learners work through ten transactions that will help them understand credits and debts on a global scale. They then discuss each transaction in terms of the global economy. An extension activity and discussion questions are included.

Organelles, cellular respiration, ATP, and DNA. The passage attached to this life science reading comprehension worksheet is all about cells. After reading about diffusion and osmosis, kids answer a series of questions based on the text.

What is life like for migrant farm workers picking tomatoes at the industrial level? Your class will research and create a visual display describing farm life, work on the farm, and the pressures put on agricultural producers by high...

Ever needed a reason to stop eating meat? Read this interesting (and slightly disgusting) passage with your class to assess reading comprehension. 

Remember the Lusitania! As part of their study of the causes of World War I, class members examine newspaper articles and propaganda posters about the sinking of the Lusitania and then craft their own news story about the event.

You would think that humans make up more mass than ants do on this planet, but think again, and this time by performing calculations. Middle schoolers use scientific notation to compute and compare the estimated total mass of all humans...

How many planets can you name? Did you get all 13 in our solar system, including the dwarf planets, or were you surprised when you read there are 13 planets? The instructional activity helps scholars understand the scale of the universe...

Should Pluto be considered a planet or a dwarf planet? Scholars research planets in our solar system to understand their similarities and differences. It also includes memory activities related to the order of the planets. 

Two activities explore the concept of size, especially small sizes down to the nano. Scholars practice determining volume, mass, and density and calculate exponential increases and decreases. They then predict and test the effect of size...

Scholars make a model to discover how the force of trade winds over the Pacific Ocean creates an El Niño. Super scientists observe how the severe weather affects life in water and on land. 

See what you cannot see by getting a little creative. An intriguing lesson has learners use lasers to explore X-ray diffraction. Given a box with unknown structures, they shine a laser through the box and interpret the results....

Is screen time dangerous time? Scholars take a close look at the facts surrounding video games and violence. Pros give evidence connecting violence to video games while cons suggest there is no relationship.

Present perfect tense doesn't mean that something is perfect, just that it's continuing from the past into the present. Demonstrate proper usage of present perfect verb tense with a slideshow presentation, which features a passage...

Young astronomers learn about the Big Bang Theory and redshift through a hands-on activity in the last installment of a three-part series. Participants draw dots on balloons and then inflate them to model how galaxies moved farther apart...

Middle schoolers develop an understanding of our planet as a system by designing a very-long-duration space mission in which the life-support system is patterned after that of earth.

Individuals in your class research the origin of an animal and present their discoveries to the class. The first appearance of the animal and its date of extinction are indicated on a class time line.