DOS

Week of

Sept 24-28

DOS~Mon1. Which of the following is a precaution you should take AFTER a lab investigation is complete?a. Read the activity and ask questions

b. Wash your handsc. Put on an apron and gogglesd. Take good notes

DOS~Mon1. Scientist should communicate clearly with each other after an investigation to...a. Share conclusionsb. Identify patternsc. Write hypothesisd. Collect data

DOS~Mon1. Which of the following is the BEST method for separating a mixture of iron filings and sand?

A bunsen burnerA filterA funnelA magnet

DOS TUESDAY

1. You need to mix 5 grams of a powder into water. You mix 10 grams of the powder into the water by mistake. What should you do?

Ignore it because the experiment will probably work better with more powder.

Add more water to the solution.Pretend it didn’t happen and continue with the experiment.

Tell your teacher so the liquid can be disposed of properly, and then begin again.

DOS TUESDAY2. Which type of display would BEST show the fractions of different colored candies in a bag of candies?

A circle graph A line graph A data table A bar graph

DOS TUESDAY3. Which type of display would BEST show the amount of pollution in a stream and how it changed over a ten year period?

A bar graphCircle graphData tableLine graph

DOS WEDNESDAY1. What type of change is likely to occur when your bicycle is left outside in the rain and air?Chemical changePhysical changeChange of stateEvaporation

DOS WEDNESDAY2. A _________ change is when a substance remains itself without changing into a new substance; ex: scrambled egg.PhysicalChemical

Table salt (NaCl2)None of the above

DOS WEDNESDAY3. All of the clothes and shoes in your closet are examples of matter, which is:*Something that is important.*A word made up of smaller words.*Anything that has mass and takes up space.All of the above

DOS THURSDAY1. In the Airplane Experiment, we conducted a total of 10 TESTS. What is another name for the TEST ran in this experiment?*hypothesis*analyze*TrialQuestion

DOS THURSDAY2. What happens to the tiny particles of H2O as the temperature increases.*The particles goes from a solid state to a liquid state.*The particles goes from a gas to a liquid.*The particles goes from a liquid to a solidAll of the above

DOS THURSDAY3. A change of state is _________*When matter changes from a solid to a liquid then to a gas.*When there is an increase or decrease in temperature.*A physical changeAll of the above