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It's About Time

How Electrons Determine Chemical Behaviors

For Teachers 7th - 12th Standards
Lead the class on an investigation as they play detective and locate patterns in the electron arrangement of atoms. During the seventh lesson, they assign valence numbers to elements, organize the periodic table in the correct sequence,...
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Activity
It's About Time

Atoms with More Than One Electron

For Teachers 7th - 12th Standards
Provide young chemists with the ability to manipulate atoms and predict their results, in this sixth lesson. Pupils analyze energy patterns as they predict the amount of energy required to remove electrons from atoms. They compare trends...
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Activity
It's About Time

The Chemical Behavior of Atoms

For Teachers 7th - 12th Standards
Assist your class with this colorful activity as students view and interpret changes in the hydrogen atom. They discuss concepts of the electromagnetic spectrum and use Bohr's model to predict wavelengths and light patterns,...
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Activity
It's About Time

Are Atoms Invisible?

For Teachers 7th - 12th Standards
Wow, an experiment that allows the class to participate in a missile war! Pupils discuss Thomsons's theory of cathode rays and simulate Rutherford's historical experiment to learn about atomic structure. They conclude this fourth lesson...
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Activity
It's About Time

Atoms and Their Masses

For Teachers 7th - 12th Standards
Are atoms too small to be isolated? Answer this question and more as you provide young chemists with the tools to conduct a hands-on activity demonstrating atomic mass. Pupils explore the mass of copper and aluminum, compare Dalton's...
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Activity
It's About Time

Elements and Their Properties

For Teachers 7th - 12th Standards
How did ancient scientists classify elements? Answer this question and others as young chemists create a device to test the properties of various elements. They classify elements as metals or nonmetals, learn to differentiate between...
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Activity
It's About Time

The Nitrogen and Phosphorous Cycles

For Teachers 7th - 12th Standards
How do we affect the ecosystem, and what can we do to preserve it? Pupils explore chemicals that promote and inhibit plant growth, then discuss the importance of nitrogen and phosphorus to the survival of organisms and describe how...
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It's About Time

Photosynthesis, Respiration, and the Carbon Cycle

For Teachers 7th - 12th Standards
Provide your class with the opportunity to view our carbon cycle close up. Young scientists research the cycle of oxygen as it completes the tasks of photosynthesis and respiration. They explore the importance of carbon in an ecosystem...
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It's About Time

The Water Cycle

For Teachers 7th - 12th Standards
Explore the water cycle with a hands-on earth science activity that prompts pupils to measure the amount of water normally transpired by plants. After they describe the flow of the water cycle and provide examples of how human activities...
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Activity
It's About Time

Succession in Communities

For Teachers 7th - 12th Standards
What occurs following a natural disaster? High schoolers research this question and others as they investigate natural succession after a disaster. First, as they differentiate between primary and secondary succession, they explain how...
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Activity
It's About Time

Competition Among Organisms

For Teachers 7th - 12th Standards
Who knew plants could be so competitive? Join your class as they observe plants competing for space and nutrients. Middle and high schoolers describe possible effects of introducing a new species into an already established ecosystem,...
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Activity
It's About Time

Factors Affecting Population Size

For Teachers 7th - 12th Standards
How do we predict future population growth? Young researchers investigate various factors affecting the size of our population. As they calculate and interpret graphs to determine factors that could potentially affect increases and...
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Activity
It's About Time

Energy Flow in Ecosystems

For Teachers 7th - 12th Standards
Emerging biochemists more fully understand the flow of energy in ecosystems as they explore the laws of thermodynamics and relate them to energy transfer in food chains. They also investigate heat loss from the human body and how...
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It's About Time

Who Eats Whom?

For Teachers 7th - 12th Standards
Packed with visual aids and multiple learning opportunities, an engaging exercise challenges individuals as they explore the role of producers, consumers, and decomposers. After discussing differences between food chains, food...
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Activity
It's About Time

Diversity in Living Things

For Teachers 7th - 12th Standards
How diverse is the world we live in compared to the way things used to be? Young biologists explore diverse organisms and relate the structure of each organism to its ability to survive in our current environmental conditions....
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Activity
It's About Time

Mass Extinction and Fossil Records

For Teachers 7th - 12th Standards
The focus of a fossil-based lesson uses graphs and charts that allow young paleontologists to make inferences about events of mass extinction. They must apply their previous knowledge about fossil records in this final lesson of the...
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Activity
It's About Time

The Fossil Record

For Teachers 7th - 12th Standards
What do you call a plated dinosaur when he is asleep? A stego-snorus! Through four hands-on activities, young paleontologists rotate through stattions to learn about preservation in rock, resin, ice, and conservation of animal tracks....
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Activity
It's About Time

Natural Selection

For Teachers 7th - 12th Standards
Are you the predator or the prey? Student groups participate in an activity to demonstrate the process of natural selection in a contained environment. After scholars complete the activity and questions, they apply their knowledge to a...
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Activity
It's About Time

Is It Heredity or the Environment?

For Teachers 7th - 12th Standards
Himalayan rabbits are black when raised at low temperatures and white when raised at high temperatures. Young biologists participate in an experiment using seeds to demonstrate the ways the environment can influence an inherited...
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Activity
It's About Time

Adaptations

For Teachers 7th - 12th Standards
Congratulations! You exist, thanks to the wonders of biology and adaptations. The focus of the lesson explains many adaptations of plants and animals and how the environment has influenced the process. A hands-on activity demonstrates...
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Activity
It's About Time

Oil and Gas Production

For Teachers 9th - 12th Standards
Would you consider a power failure a current event? This lesson uses multiple experiments, guided inquiry activities, and group discussions to cover the topics of oil and gas production. This is the seventh lesson in a series of eight.
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Activity
It's About Time

Petroleum and Your Community

For Teachers 9th - 12th Standards
I was going to write a joke about oil, but it seemed crude. This lesson starts with a comparison of where the US gets oil from and how that has changed over time. After analyzing the data, scholars create a graph and use the Internet to...
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Activity
It's About Time

Environmental Impacts and Energy Consumption

For Teachers 9th - 12th Standards
As scientists prove environmental impacts of using coal as an energy resource, do you think Santa regrets giving out so much of it? Through a demonstration of acid rain, pupils learn what makes it, where it occurs, the impact of it, and...
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Activity
It's About Time

Coal and Your Community

For Teachers 9th - 12th Standards
When I was young, I was afraid of the dark. Now I am afraid of getting the electric bill. This fourth lesson in a series of eight focuses on coal mining, conservation, and energy efficiency. Scholars start by taking data from a table and...