Patrick and SpongeBob love to blow bubbles Patrick found some Super Bubble Soap at Sail-Mart. The ads claim that Super Bubble Soap will produce bubbles that are twice as big as bubbles made
with regular bubble soap. Patrick and SpongeBob made up two samples of bubble solution. One
sample was made with 5 oz. of Super Bubble Soap and 5 oz. of water, while the other sample was
made with the same amount of water and 5 oz. of regular bubble soap. Patrick and SpongeBob used
their favorite bubble wands to blow 10 different bubbles and did their best to measure the
diameter of each one. The results are shown in the chart,
Bubbles (Diameter in centimeters)
1. What did the Super Bubble ads claim?
Bubble Super Bubble Soap Regular Bubble Soap
1
15
10
2. What is the independent variable?
2
10
5
3
12
16
3. What is the dependent variable?
4.
18
14
4. Look at the results in the chart.
5
22
11
5. Calculate the average diameter for each
6
13
12
bubble solution.
7
16
11
8
18
15
a. Super Bubble :
cm
9
15
13
Regular Soap =
cm
10
12
6
b. What should be their conclusion?
6.
the results reliable? Why or why not?
Doc PS-Experimental Design - Independent & dependent Variable de

i do believe the correct answer is the spread of chinese culture throughout asia and africa.good luck

explanation:

the branch of biology that deals with the normal functions of living organisms and their parts.

the way in which a living organism or bodily part functions.

your answer is "graduates" hope this

question - in 1827, john walker, a druggist in a small english town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. the druggist had discovered the first friction-chemical match, the kind we use to-day. it is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. although walker's match did not require the bottle of acid, nevertheless it was not a good one. it could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. in a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. the match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. it would ignite when rubbed on any dry surface, and there was no longer any sputtering. this was the phosphorus match, the match with which we are so familiar. according the paragraph what was the benefit of the new phosphorus match? it burst into flame when rubbed on sandpaper. it was made by mixing chemicals. it could be ignited on any dry surface. it threw fire in all directions.

answer - matches required natural chemicals