All About Frogs: Life Cycle of a Frog

We know about many different life cycles of animals and plants, but did you know stars also have a life cycle? The video illustrates the life of a star in under one minute from the formation of helium to the collapse of the star. 

Introduce your young astronomers to the life cycle of stars, from protostar to either white dwarf or black hole, with a short video that provides a brief overview of the process.

First-time florists will be able to label the structures of simple and composite flowers after reading this handout and answering the comprehension questions. There are a couple of grammatical errors in the text, but the content is...

After eight years of roaming in the ocean, salmon go back to the freshwater stream of their birth place to lay their own eggs. They jump, swim, and dive through obstacles to travel upstream. The salmon stop eating, lay their eggs, and...

From supernova to neutron star ... what's next? A video presentation describes a neutron star and its life in the universe. Learners then answer questions online to asses their understanding.

All stars start with the fusion of hydrogen, but their life cycles vary greatly. The PBS 9-12 Space series introduces star life cycles and explains why they vary so much. Clear animations illustrate the pressure, fusion, collapsing, and...

Dengue Virus leads to the deaths of around 25,000 people, mostly children, every year. Scientists understand how the virus gets into cells and replicates, but they still struggle to prevent it. Curious scholars view an animation of the...

The development of the male and female gametes in a plant is illustrated, explaining plant fertilization, pollination, and reproduction. Overall, get a complete picture of the life cycle of a flowering plant with some wonderful details...

This lesson focuses on the formation and life cycle of stars. Stars form when enough dust and gas clump together because of gravitational forces. Nuclear reactions release energy to keep the star hot. Some stars grow larger over time....

Did you know that 2,700 liters of water are required to produce just one t-shirt? Or that cotton uses more insecticides and pesticides than any other crop? An engaging video traces the cycle of t-shirt production from cotton bolls to the...