Answer:
B
Explanation:
It is important to only test one variable at a time because you need to be able to disprove or prove a problem with just one independent variable. When you have several variables in the experiment, it would be impossible to know which variable honestly caused the end result.
D. F
Molecules are a group of bonded atoms but Fluorine stands on its own
Answer:
mass and occupies space
Explanation:
matter is made up of mass and mass takes up space
I would love to help but it is 3 or is it 3 million?
Some of the liquid surface particles may gain enough KE to escape into the space above the liquid - evaporate. ... The kinetic molecular theory states that all matter is made up tiny constantly moving particles and in a solid they are packed tightly. (Only answered part of the question, sorry bro)