Mummy Experiment

Have you ever wondered why every time you eat salty foods, you get thirsty? Or why fresh vegetables tend to shrivel up when you sprinkle salt on them? The answer is simple. Salt is a desiccant – it helps remove water from things, including human bodies. Which is why the Ancient Egyptians used salts [...]

How Roots are Especially Fitted to Take in Moisture
You have probably noticed that even though the greatest care can be taken to prevent injury to the roots, a plant is apt to wither and be checked in its growth when transplanted (planted again after having been removed from soil in which it has been [...]

How do Plants know which way to grow?
If you’ve ever planted seeds in the ground, perhaps you have wondered just how do they know which way to grow. How do the roots know to grow down and how do the stems and leaves know to grow up?
What You’ll Need:
There are two parts to this experiment. [...]