What affects osmosis in plants

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What affects osmosis in plants

Outline

This investigation is about what affects the rate of osmosis in plant. We will be doing an experiment with different amounts of sugar solutions in seven different beakers filled with the same amount of water. Each beaker will have a stronger solution than the first. We add three potato chips into each beaker and find out what happens to them after a period of time.

Equipment

Seven beakers – used to put the water and chips into

Potato – used to test the affect of osmosis

Core borer – pushed into the potato to get equal sized and shaped pieces

Water – put into the beaker for osmosis to take place

Sugar – put into the beaker to affect osmosis

Ruler – use to measure the chips in case of size difference

Measuring scales – use to measure the amount of sugar

Method

First we got seven beakers and poured water into each one. We then poured different amounts of sugar that were meant to be weighed on the scales and put them into each beaker but there weren’t any so we will have to weigh them next time. We got a potato and used a core borer to get 21 equal shaped potatoes. We should have measured the potatoes with a ruler making sure they were all the same size before putting 3 potatoes into each beaker. We then left it for about 1 hour. We poured out all the potatoes on the table and measured them again and wrote down the changes in size in different amounts of sugar solutions in the results table.

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Fair test

There were lots of ways to make sure that this was a fair test. We made sure that there was the same amount of water in each beaker and that the beakers were the same size and shape. We had to make sure we put the right amount of sugar in each beaker.  When we cut the chips we made sure we used the same part of the potato so that it didn’t change the size or shape and didn’t put any holes in the middle of the chips. We checked the size of ...

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