Testing Growth of Algae

New Horizons began its journey to Pluto in 2006. Ten years later, it continues its mission. In that time, scholars have surely grown, but how much more will they grow by the time New Horizons reaches its destination? Find out with an...

The total world population is predicted to pass 8 billion by 2025, which is less than 10 years from now. The video focuses on human population growth and the impact it has had and is having on our planet and other populations. It...

Along came a spider, who sat down beside her. She screamed, but RJ wouldn't smash it because spiders are a limiting factor for other insects in an ecosystem. In this video, other common limiting factors for populations are listed....

Did you know that, as the world's population increases, its demand for energy increases at an even faster rate? Learners watch a short video about the world's energy crisis before discussing the sustainable alternative energy sources....

Here's your chance to grow and develop your lesson plan for NGSS standard LS1B! The narrator of the video explains how to lay a solid foundation for learning within the standard, then gives examples and scenarios to help fine tune...

More than 127 non-native species live in Glacier National Park in Montana and their infestations are growing! Pupils read about and gather samples of exotic plants. Participants create a master book of pressed plants and complete a...

Study how plants grow with your English language learners with a cross-curricular instructional activity revolving around pumpkins. These activities provide opportunities to practice new scientific vocabulary while practicing skills such...

Identify natural resources in the world and how they translate into economic development. In this global economy lesson, your class will utilize the Internet to view an Oregon Time Web which they research to examine the history of...

How does your garden grow? An inquiry-based, organic gardening unit asks young scientists to research a vegetable or flower, create an environment for it, and then plant and tend to the seedling. Gardeners develop their own research...

If any of the limiting factors in an environment change, both animal and plant populations also change. The video explains two different models of growth and the impact of limiting factors. It highlights the carrying capacity of an...