What was used to make invisible ink in the bill nye the science guy show? Also, how is invisible ink connected to the water cycle?

Which of the following might a chemist choose to study? a. glacier movement in alaska b. better ways to recycle plastics c. the effects of hurricanes on turtle populations d. the vibrations in bridges caused by big trucks

Covalent network solids typically have melting points and boiling points. the chemical formula of a network solid indicates in the molecule.

Match each object to its description: a. coma of a comet b. comet tail c. oort cloud haze surrounding a nucleus created by solar wind. hypothetical sphere around the solar system