Fluorine will be a solid at any temperature less than its melting point of –220oC. At –220oC, fluorine melts and becomes a liquid. The liquid then heats up until it reaches the boiling point of –188oC. At that temperature, the fluorine becomes a gas and remains a gas for all higher temperatures. Which of the halogens are gases at room temperature of 22oC? Which are liquids? Which are solids?

Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

If an area has high air pressure and low humidity, what type of weather will it most likely have? plz !