One student did an experiment with sand, gravel, food coloring and water. the steps of the experiment are shown below.
fill about half of a plastic cup with layers of gravel and sand.
pour water into the cup and observe it seep through the layers.
add two drops of food coloring on one side of the gravel layer.
observe the food coloring mix with the water.
what does the student's experiment most likely demonstrate?
movement of groundwater through sinkholes
movement of pollutants through the groundwater
chemical reaction between acid rain and groundwater
chemical reaction between groundwater and layers of earth
Answers: 3
Biology, 22.06.2019 01:00, majesticfart7736
Which part of cellular respiration must occur before any of the other steps can occur
Answers: 2
Biology, 22.06.2019 09:00, jayleneeeee
What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water
Answers: 1
Biology, 22.06.2019 10:00, momte
1. in a certain species of plant, the color purple (p) is dominant to the color white (p). according the punnett square, what is the probability of and offspring being white? 50%25%0%100% 2. in a certain species of plant, the color purple (p) is dominant to the color white (p). according the punnett square, what is the probability of and offspring being white? 0%100%50%25%(picture 1 is for question 1, and picture 2 is for question 2)
Answers: 1
Biology, 22.06.2019 12:00, YoungKukie24
The earth's oceans are made up of chlorine, and trace elements. a) carbon, oxygen b) oxygen, silicon c) hydrogen, oxygen d) nitrogen, oxygen
Answers: 2
One student did an experiment with sand, gravel, food coloring and water. the steps of the experimen...
Mathematics, 16.06.2020 17:57
Mathematics, 16.06.2020 17:57
Mathematics, 16.06.2020 17:57
Social Studies, 16.06.2020 17:57
English, 16.06.2020 17:57