How Does Cell Size And Shape Affect Transport of Materials

Is your class ready to size up the topic of diffusion? Help them get cell shape savvy with a well-written handout. The resource covers how substances such as oxygen passively move through the cell membrane and how cell size and shape...

Use salmon eggs as a cell model for demonstrating the movement of water over concentration gradients. Junior scientists examine the same process microscopically with an onion cell. They use a thistle tube and a semipermeable membrane to...

What do a bird, an egg, a rabbit, and a toad all have in common? This fun-filled resource explains the similarities and differences between cells and how all cells are similar, yet all are different. Learners begin by depicting a...

What do plate tectonics and ocean currents have to do with global climate? This fourth installment in a six-part series focuses on how plate tectonics and ocean currents affect global climate, both now and in the past, outlines an...

Cancer's ability to quickly spread from one organ to the next makes it one of the most fatal diseases in recent history. Watch as this short video takes you on a trip into the microscopic world of cancer cells, exploring the different...

Hidden in our neck is an important, but often overlooked, little organ called the thyroid. Enjoy this short video as it explains the vital role this powerful organ plays in controlling the function of all the cells in our body, as well...

Explaining exactly how DNA works to provide genetic information is a complex topic, but it is presented in a clear and engaging way through a five-minute video. Have learners try to explain how DNA works before watching the video, then...

Feeling hungry after skipping breakfast? Here's why! Introduce young scientists to that feeling of fullness with an engaging video. Use the included assessment and extension materials to further study which foods make us feel the...

Create models of the infrared, visible, and ultraviolet portions of the electromagnetic spectrum. Working in small groups, your class can investigate metric conversions calculations. They will find the length of the waves in nanometers,...

Students investigate why cells divide. For this cell size lesson plan, students observe how far a solution travels into 3 different size model cells of agar. They answer questions about the most effect movement of "nutrients" into the...