Hi, what do you want to do?
Science ABC
Where Do Fish Come From In New Lakes And Ponds?
Fish either reach new lakes and ponds through external help, or the creatures stay there, survive the period of drought, and then thrive again when water is plentiful. Some species of aquatic organisms lay eggs capable of surviving long...
Other
Man Made vs. Natural Structures
A teacher-made video on structures that are found in the natural world or made by people. The teacher pauses periodically for students to consider questions that she asks. [4:11]