Read the lab description and answer questions 33-38 You are lactose intolerant.  You found an unlabeled container of milk in your fridge and you want to know if it is safe for you to use that milk on your cereal.  Unfortunately, you ran out of Lactaid tabs.   You happen to have a container of urinalysis strips in your medicine cabinet, but you’re not sure how old those strips are.  You decided to do an experiment on some known beverages in your fridge along with the unknown milk to see if it is safe for you to drink.  Your mom is a diabetic and there just happens to be a glucose solution in the refrigerator for emergencies.  Below is a table containing the results from your experiment. Sample Actual glucose content in mg/dL Water 0 Sprite 750 Diet Sprite 0 Bottled Starbucks Iced Coffee 1000 Gatorade 250 Glucose solution 750 Unknown Milk 750   How does testing for glucose tell you if the Unknown Milk is safe for you to drink?

Read the lab description and answer questions 1-7 Jack was tasked with determining which brand of pen is most likely to attract a termite. He selected 5 brands of black ink pen, Bic, Precision V5, Sharpie, Papermate, Pilot, plus a pencil. Jack knows from previous experience that the termites are attracted to ink from a black Bic pen and are not attracted to lead from a pencil. To complete the experiment Jack drew a 7 cm diameter circle with each pen and placed a termite 0.25 cm from each circle. He then gave the termite 60 seconds to find the circle and travel around the circle. Jack defined positive results as a termite finding the circle within 60 seconds and then following the circle at least half way around. A negative result would be a termite that was unable to find the circle within 60 seconds or a termite that found the circle but followed it for less than half the circle. Jack tested ten termites on each brand of pen for a total of sixty termites. The results of Jack’s experiment are found in the table below. Table 1: Number of termites that found the black 7 cm diameter circle within 60 seconds and then followed the circle for at least half the total distance. Brand of pen Bic Precision V5 Sharpie Papermate Pilot Pencil # of termites 10 2 0 4 10 2   What is Jack’s sample size? 

    You are looking at the results from your polarity experiment.  Assuming the balloon has a negative charge,  which of the following is true? 

Read the lab description and answer questions 1-7 Jack was tasked with determining which brand of pen is most likely to attract a termite. He selected 5 brands of black ink pen, Bic, Precision V5, Sharpie, Papermate, Pilot, plus a pencil. Jack knows from previous experience that the termites are attracted to ink from a black Bic pen and are not attracted to lead from a pencil. To complete the experiment Jack drew a 7 cm diameter circle with each pen and placed a termite 0.25 cm from each circle. He then gave the termite 60 seconds to find the circle and travel around the circle. Jack defined positive results as a termite finding the circle within 60 seconds and then following the circle at least half way around. A negative result would be a termite that was unable to find the circle within 60 seconds or a termite that found the circle but followed it for less than half the circle. Jack tested ten termites on each brand of pen for a total of sixty termites. The results of Jack’s experiment are found in the table below. Table 1: Number of termites that found the black 7 cm diameter circle within 60 seconds and then followed the circle for at least half the total distance. Brand of pen Bic Precision V5 Sharpie Papermate Pilot Pencil # of termites 10 2 0 4 10 2   What is Jack’s hypothesis?

Why does extreme heat prevent enzymes from functioning?

Read the lab description and answer questions 33-38 You are lactose intolerant.  You found an unlabeled container of milk in your fridge and you want to know if it is safe for you to use that milk on your cereal.  Unfortunately, you ran out of Lactaid tabs.   You happen to have a container of urinalysis strips in your medicine cabinet, but you’re not sure how old those strips are.  You decided to do an experiment on some known beverages in your fridge along with the unknown milk to see if it is safe for you to drink.  Your mom is a diabetic and there just happens to be a glucose solution in the refrigerator for emergencies.  Below is a table containing the results from your experiment. Sample Actual glucose content in mg/dL Water 0 Sprite 750 Diet Sprite 0 Bottled Starbucks Iced Coffee 1000 Gatorade 250 Glucose solution 750 Unknown Milk 750   Why did you need to test the glucose solution for glucose content?

Objective lens = 4x, Ocular lenses = 10x   This image was taken from a slide under the compound microscope using a total magnification of: _________________    

Read the lab description and answer questions 1-7 Jack was tasked with determining which brand of pen is most likely to attract a termite. He selected 5 brands of black ink pen, Bic, Precision V5, Sharpie, Papermate, Pilot, plus a pencil. Jack knows from previous experience that the termites are attracted to ink from a black Bic pen and are not attracted to lead from a pencil. To complete the experiment Jack drew a 7 cm diameter circle with each pen and placed a termite 0.25 cm from each circle. He then gave the termite 60 seconds to find the circle and travel around the circle. Jack defined positive results as a termite finding the circle within 60 seconds and then following the circle at least half way around. A negative result would be a termite that was unable to find the circle within 60 seconds or a termite that found the circle but followed it for less than half the circle. Jack tested ten termites on each brand of pen for a total of sixty termites. The results of Jack’s experiment are found in the table below. Table 1: Number of termites that found the black 7 cm diameter circle within 60 seconds and then followed the circle for at least half the total distance. Brand of pen Bic Precision V5 Sharpie Papermate Pilot Pencil # of termites 10 2 0 4 10 2   What is Jack’s dependent variable? 

Which of the following plays a role in the phenomenon of capillary action. Mark all that apply.  

Which of the following does NOT play a role in the phenomenon of capillary action?