8 Science Questions

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Please answer the following 8 questions below thoroughly and labeled... the questions are uploaded below. Thanks so much

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QUESTION 1 Why is the Si measurement system so important to the scientific community? Enter the answer in the space provided. TTT Arial 3 (12pt) T Path:p QUESTION 2 Compare 51.5 hectograms to 51,500 decigrams. How do each of these values compare to a gram, and which represents a larger mass? Enter your answer in the space provided. TTT Arial 3 (12pt) T Path:p QUESTION 3 A solid is warmed. Assuming the mass remains constant, how, if at all, does this effect the density of the solid? Enter your answer in the space provided. QUESTION 4 5 points Save Answer A student forms the following hypothesis: If people eat white chocolate, then they will be happier. What is/are the problem(s) with this hypothesis? Enter the answer in the space provided. TTT Arial 3 (12pt) T = = = 25 Path:p Words:0 QUESTION 5 5 points Save Answer found to be 1.76 g/mL. The liquid is blue in color. Various properties of a liquid are recorded during an experiment. The volume of the liquid is measured to be 25.5 milliliters. The density of the liquid Which item(s), if any, of the information recorded is/are quantitative data? Enter your answer in the space provided. Τ Τ Τ Arial - 3 (12pt) - T- Path:p Words:0 QUESTION 6 5 points Save Answer Various properties of a piece of fabric are recorded during an experiment. The fabric is purple. The length of the fabric is 17.5 inches. The width of the fabric is 10.0 inches. The fabric is rough to the touch. Which item(s), if any, of the information recorded is/are qualitative data? Enter your answer in the space provided. QUESTION 7 5 points Save Answer Ronald wants to see if a new shower cleaner works better in removing soap scum than his old cleaner. He pumps 50 sprays of the new shower cleaner on one half of the shower and pumps 50 sprays of his old cleaner on the other half. Identify the constant in this experiment. Enter your answer in the space provided. TT T Arial - 3 (12pt) - T- - - - 25 Path:p Words:0 QUESTION 8 5 points Save Answer Jenny wants to determine if a new brand name washing detergent is better than her old detergent. She washes ten dirty t-shirts with the new washing detergent. After washing, she thinks they are cleaner using the new detergent. What can she do to be sure the new washing detergent works better than the old detergent? Enter your answer in the space provided.
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Explanation & Answer

attached is the completed work

(1) It is important because it provides a standard and universal way of communication with
other scholars and scientists in different countries. It makes calculations faster and the use
of prefixes makes it easier to express very large or small numbers.
(2) Since
1 hectogram=100 grams
51.5 hectograms =?
(51.5 x 100)/1 = 5150 grams

Since 10 decigrams= 1 gram
51,500 decigrams =?
(51,500 x 1)/10 = 5150 grams
Both masses are the same.
(3) Warming of a solid causes expansion of the solid which leads to an increase in volume.
Since DENSITY = MASS/VOLUME: It therefore implies that density is inversely
proportional to volume. ...


Anonymous
Awesome! Perfect study aid.

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