The fruit of the dandelion is designed to be dispersed by the wind & the fruit of the coconut by this
For an adult elephant it can be up to 1 1/2" thick & weigh about a ton yet can be pierced by an insect
When light is passed thru a prism, it produces this spread of colors
The Big Dipper is part of this constellation
Invented by Edwin Land, it was the first instant camera
The most important source of uranium & radium is this mineral ore
When Henry Cavendish discovered this lightest-known element, he called it inflammable air
It's the branch of chemistry that deals with carbon compounds
In ancient times, lodestone was used as a form of this instrument
Galileo is said to have done gravity experiments by dropping weights from this tower