Ms. Fleaker set up ten stations for her students to measure the density of 100.0 milliliters of water at different temperatures. The stations were very similar, each having a graduated cylinder, a beaker, a water supply, a hot plate, an ice bath and either an electronic balance that measured to 0.1 gram or a balance that massed to 0.0001 gram.

Ms. Fleaker ran the lab in all five of her classes. Each of the lab groups shared their measurements for mass and volume at the same three assigned temperatures. After examining all the data, there were some differences in the values the groups reported. Ms. Fleaker thought the differences could be explained by
A) not following directions.
B) not conducting enough trials.
C) using balances with different accuracy.
D) not using freezing point and boiling point

Is a measure of the resistance to flow. a high liquid has a high resistance to flow and flows slowly. the ancients thought everything in the world was made of 4 we now know that there are 94 naturally occurring and scientists have created another 24 i am certain they will create even more. honey flows slowly because it has a high to flowing. a can be separated by physical means because it contains more than one pure substance and 2 pure substances are not chemically bonded to each other. a cannot be separated by physical means. all matter is made up of all elements are with the same number of protons. if it is just a single or many bonded together, if all of them have the same number of protons, it is an element. in a piece of pure iron metal, all the are joined together, that piece of iron metal is called elemental iron. a single of iron is called elemental iron. a mixture has differences from place to place. we might need a microscope to see them or they might be obvious to the unaided eye. there are surfaces separating it into different phases. a mixture is the same everywhere. it is uniform. there are no surfaces separating it into different phases. if different kinds of atoms (different elements) are bonded together by their electrons, it is called a there are physical means of to isolate the different pure substances in a mixture and there are chemical means of to isolate the different elements in a compound. 1. element 2. compound 3. mixture 4. heterogeneous 5. homogeneous 6. pure substance 7. atoms 8. separation 9. viscosity 10. resistance