Mathematics, 05.07.2019 04:40 madisonsessums8
For his science project, austin wants to determine if the ph of standing rainwater changes over time. he collects rainwater and distributes it evenly in 5 jars and places them all indoors in a spot that does not receive a lot of sunlight to limit evaporation. using a ph testing kit, he measures the ph of the water in the first jar on the 4th day, second jar on the 8th day, third jar on the 12th day, fourth jar on the 16th day and fifth jar on the 20th day. what is the independent, or manipulated, variable in austin’s experiment? a the number of days the rainwater is allowed to sit b the amount of sunlight c the change in the amount of rainwater due to evaporation d the change in ph of the rainwater over time
Answers: 1
Mathematics, 21.06.2019 17:00
Parks is wearing several rubber bracelets one third of the bracelets are tie dye 1/6 are blue and 1/3 of the remainder are camouflage if park swears to camouflage bracelets how many bracelets does he have on
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Mathematics, 21.06.2019 17:10
Empty box + box + empty box fill in the box is equal to 30 how
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Mathematics, 21.06.2019 19:00
Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 8 = -6x a. –7.12, 1.12 b. 7.12, –1.12 c. 7.12, 1.12 d. –7.12, –1.12
Answers: 2
For his science project, austin wants to determine if the ph of standing rainwater changes over time...
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