A teacher demonstrates an activity to show how different objects interact. He labels two beakers 1 and 2 and fills them with hot water. He adds one spoonful of sugar to beaker 1 and one spoonful of sawdust to beaker 2. The teacher leaves the beakers undisturbed for a few minutes and asks the students to record their observations.Which observation correctly describes how sugar and sawdust interact with water?ResponsesSugar dissolves in water, and sawdust floats on water.Sugar dissolves in water, and sawdust floats on water.Sugar evaporates from water, and sawdust floats on water.Sugar evaporates from water, and sawdust floats on water.Sugar dissolves in water, and sawdust settles at the bottom of the beaker.Sugar dissolves in water, and sawdust settles at the bottom of the beaker.Sugar evaporates from water, and sawdust settles at the bottom of the beaker.Sugar evaporates from water, and sawdust settles at the bottom of the beaker.

A student puts five raisins each in two beakers A and B. Beaker A contained 50 mL of distilled water and beaker B had 50 mL of saturated sugar solution. After some time the student would observe that

Determine whether the following statement is true or false:When sugar dissolves in water the sugar particles are so small that light can pass straight through the mixture.

ome students set up this experiment to investigate osmosis. They filled two pieces of dialysis [visking] tubing with different liquids and left them both in a beaker of 5% sucrose solution for an hour.9.(a) Describe and explain the likely results after one hour. ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ (6) Page 17 of 18It is important as it contains half the genetic material which will join with the other half ofthe genetic material in the egg to form a full set of chromosomes. the chromosomes is what will determine the characteristics of the offspring(b) Describe two examples where osmosis is used in living things. ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________

A student combines water and salt in beaker A and combines sand and soil in beaker B. How should the student best classify the substance in each beaker?ResponsesBeaker A contains a mixture, and beaker B contains a solution.Beaker A contains a mixture, and beaker B contains a solution.Beaker A contains a solution, and beaker B contains a mixture.Beaker A contains a solution, and beaker B contains a mixture.Beaker A is a solvent, and beaker B is a solute.Beaker A is a solvent, and beaker B is a solute.Beaker A is a solute, and beaker B is a solvent.Beaker A is a solute, and beaker B is a solvent.

A student dissolved 5 g of sugar in 100 mL of distilled water in beaker A. She dissolved100 g of sugar in100 mL of distilled water in beaker B. Then she dropped a few raisins ofequal weight in each beaker. After two hours she found the raisins in A swollen and thosein B shrunken. The inference drawn is thata) sugar concentration of raisins is lower than that of solution A and higher than thatof solution B.b) sugar concentration of raisins is higher than that of solution A and lower than thatof solution B.c) in B the cell membrane of raisins was damaged.d) in A the permeability of the cell membrane of raisins to water was enhanced