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Some objects that blew into a swimming pool after a party need to be removed. The objects include foam cups, keys, coins. Which explains a useful method for removing some of the objects?
copper penny
The substance is not visible, and the container appears empty.
The foam cups are less dense than water, so they can be removed from the surface with a pool cleaning net.
Plastic
168g
287 degrees celsius
Vinegar and oil have different densities.
0 degrees celsius
Which of the following containers most likely only holds gas?
copper penny
The substance is not visible, and the container appears empty.
The foam cups are less dense than water, so they can be removed from the surface with a pool cleaning net.
Plastic
168g
287 degrees celsius
Vinegar and oil have different densities.
0 degrees celsius
Cracks in the seafloor called hydrotherman vents send streams of hot water into the ocean. The water from a vent 387 degrees celsius. How many degrees above the boiling point of water is the temperature?
copper penny
The substance is not visible, and the container appears empty.
The foam cups are less dense than water, so they can be removed from the surface with a pool cleaning net.
Plastic
168g
287 degrees celsius
Vinegar and oil have different densities.
0 degrees celsius
Given the mass of substances: water 125g, toothpicks 5g, table salt 30g, sugar cubes 20g, alcohol 98g, cooking oil 75g, marbles 40g, plastic cubes 35g. What's the difference in grams between the total mass of liquids and the total mass of solids?
copper penny
The substance is not visible, and the container appears empty.
The foam cups are less dense than water, so they can be removed from the surface with a pool cleaning net.
Plastic
168g
287 degrees celsius
Vinegar and oil have different densities.
0 degrees celsius
Italian dressing, made of vinegar and oil is used for salad. Why would a person want to shake the salad dressing before using it?
copper penny
The substance is not visible, and the container appears empty.
The foam cups are less dense than water, so they can be removed from the surface with a pool cleaning net.
Plastic
168g
287 degrees celsius
Vinegar and oil have different densities.
0 degrees celsius
At what temperature did the water outside of a school building with ice on the edge of its roof most likely begin to change water to ice?
copper penny
The substance is not visible, and the container appears empty.
The foam cups are less dense than water, so they can be removed from the surface with a pool cleaning net.
Plastic
168g
287 degrees celsius
Vinegar and oil have different densities.
0 degrees celsius
Which material would be best to use to insulate electrical wires?
copper penny
The substance is not visible, and the container appears empty.
The foam cups are less dense than water, so they can be removed from the surface with a pool cleaning net.
Plastic
168g
287 degrees celsius
Vinegar and oil have different densities.
0 degrees celsius
Which is the best conductor of electricty?
copper penny
The substance is not visible, and the container appears empty.
The foam cups are less dense than water, so they can be removed from the surface with a pool cleaning net.
Plastic
168g
287 degrees celsius
Vinegar and oil have different densities.
0 degrees celsius
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