25 POINTS
The atom is the basic building block of all matter: The idea that matter was made of tiny separate pieces had been around for many years, but it was John Dalton who wrote the first complete theory about atoms in the early 1800’s. Dalton thought the elements were made of atoms, and diff elements had their own type of atom. It wasn’t until the 1900’s, however, that scientists were able to find proof of the atom. What was Dalton missing from his explanation of atoms that all science explanations needed?
A description of how atoms form
Evidence to support his explanation
Models of atoms to show other scientists
A hypothesis to explain his interpretations
Answers: 2
Biology, 21.06.2019 12:30
How does oxygen move from the respiratory system to the circulatory system? a. by pumping through the heart b. by circulating in an artery c. by moving across a synapse d. by diffusion across a capillary wall
Answers: 3
Biology, 21.06.2019 18:50
Of the pollutants that form acids in the atmosphere, which is easiest to reduce? a. sulfur dioxide b. nitrogen dioxide c. ozone d. carbon monoxide
Answers: 3
Biology, 22.06.2019 09:10
Research question: why are the carrots that grew on the left side of the garden larger than the carrots that grew on the right side of the garden? which hypothesis is based on this research question? a comparison of people with gardens to people without gardens will show who is likely to live longer. b. carrots are thought to be good for your eyesight and should be eaten regularly. c. carrots that are provided lots of sunlight grow to a larger size than carrots grown in the shade. d. eating fresh vegetables every day is a healthy thing to do.
Answers: 1
Biology, 22.06.2019 13:00
Ascientist wanted to formulate a pill to attack a specific type of bacteria that infects the throat. which biological component would be best to use as a model for the pill's function? bacteriocytes phagocytes complement antibodies
Answers: 1
25 POINTS
The atom is the basic building block of all matter: The idea that matter was made of tiny...
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