Science across MBA

A group of student dissolved sweets in 2OO ml of water to see how long they took to dissolve. They repeated this a number of times, changing the temperature of water each time. What was the independent variable?

• Temperature of the water

• Time to dissolve

• Volume of water

• time of the day.

A group of student dissolved sweets in 2OO ml of water to see how long they took to dissolve. They repeated this a number of times, changing the temperature of water each time. What was the dependent variable?

• Temperature of the water

• Time to dissolve

• Volume of water

• time of the day.

A group of student dissolved sweets in 2OO ml of water to see how long they took to dissolve. They repeated this a number of times, changing the temperature of water each time. What was a control variable.

• Temperature of the water

• Time to dissolve

• Volume of water

• time of the day.

The students found that the hotter the water the quicker the sweets dissolved, this is called the

• Improvement

• limitation

• Conclusion

• Evaluation

In the investigation into dissolving the sweets (made from sugar) into water, the water is called the

• Solution

• Solute

• solvent

• Saturation point.

In the investigation into dissolving the sweets (made from sugar) into water, the sweet is called the

• Solution

• Solute

• solvent

• Saturation point.

In the investigation into dissolving the sweets (made from sugar) into water, the sugary liquid at the end of the experiment is called the

• Solution

• Solute

• solvent

• Saturation point.

In the investigation into dissolving the sweets (made from sugar) into water, there comes a time when a sweet will not dissolve... this means they have reached the....

• Solution

• Solute

• solvent

• Saturation point.

If the saturation point is increased, what happens to solubility?

• Increases

• decreases

Suggest a way that the solubility could be increased

• Crush the sweet into smaller pieces

• Increase the temperature off the water

• Stir with more speed.

• Increase the light intensity