A student is conducting an investigation about properties of matter. She follows these steps in her investigation:

Question

A student is conducting an investigation about properties of matter. She follows these steps in her investigation:

Obtain three identical beakers.
Pour 100 mL of water in each of the beakers.
Obtain 200 g of three different powdered solids, each in a seperate container.
Label one container "Powder X", label the other "Powder Y", and the last "Powder Z".
Add a small amount of powder X into one of the beakers.
Stir the powder until it dissolves, and keep adding powder X until no more will dissolve.
Record how much powder X was added to the water.
Repeat steps 5–7 for powders Y and Z in their own beakers of water.
What was the student most likely trying to find out from the investigation?

Answer 1

The student was most likely trying to find out the solubility of each powdered substance in water.

Answer 2

The natural pond shown below, from the marshes of Florida's Big Bend Coast, is the result of sinkhole formation.Sometimes the cracks in sinkholes can reach all the way to aquifers underground. Which of the following would most likely result in a sinkhole collapsing and forming a large surface hole?

Answer 3

The most likely cause of a sinkhole collapsing and forming a large surface hole is the erosion and weakening of the limestone or other soluble rock layers that make up the roof of the underground caverns or aquifers. This can be due to factors such as heavy rainfall, changes in water levels, and human activities like mining and construction. When the roof is weakened to the point where it can no longer support its own weight, it may collapse, causing the sinkhole to form.

Answer 4

The student was most likely trying to find out the solubility of the different powders (X, Y, and Z) in water.

Answer 5

A student is conducting an investigation about properties of matter. She follows these steps in her investigation:

The student was most likely trying to find out the solubility of each powdered substance in water.

The natural pond shown below, from the marshes of Florida's Big Bend Coast, is the result of sinkhole formation.Sometimes the cracks in sinkholes can reach all the way to aquifers underground. Which of the following would most likely result in a sinkhole collapsing and forming a large surface hole?

The student was most likely trying to find out the solubility of the different powders (X, Y, and Z) in water.

The student was most likely trying to find out the solubility of the different powdered solids (Powder X, Powder Y, and Powder Z) in water.