Exploring Water Properties in Lab 4

What was the main issue when the teacher first asked the questions?

• The questions were too difficult

• Students mixed up the questions

• Students were not paying attention

• There were not enough materials

What should students do if they are working on Question 1?

• Mix different substances in water

• Focus only on the dry powder experiment

• Mix ice and salt

• Work on any experiment they like

Why is it important to use a small beaker for mixing?

• It is more accurate

• It allows for better visibility of undissolved solids

• It is easier to handle

• It is less likely to spill

What is the first step in the sugar dissolving experiment?

• Measure the sugar

• Measure the water

• Heat the water

• Mix the sugar and water

Why should only dry substances be used in the dry powder experiment?

• Wet substances are harder to measure

• Wet substances can cause the equipment to become sticky

• Wet substances dissolve too quickly

• Wet substances are not allowed in the lab

What is the purpose of the ice density experiment?

• To see how fast ice melts

• To compare different types of ice

• To find the density of ice

• To measure the temperature of ice

What should be done after measuring the mass of the ice?

• Heat the ice

• Measure the volume of the ice

• Drop the ice into water and measure the displacement

• Mix the ice with salt

Why is cold water used in the ice density experiment?

• It is a requirement of the experiment

• It prevents the ice from melting too quickly

• It is easier to measure

• It gives more accurate results

What should be done if the scale does not read zero?

• Ignore it

• Press the tare button

• Add more water

• Remove some water

What is the final step in finding the density of water?

• Weigh the water

• Measure the temperature

• Calculate the volume

• Mix the water with another substance