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Do Maggots move towards or away from the stimulus of gravity?

Extracts from this document...

Introduction

Do Maggots move towards or away

from the stimulus of gravity?

Prediction

        I think that the maggots will move away from gravity. This is because it is an easier route for them to take.

Method

We used:        Retort stand,

                Boss,

                Clamp,

                Choice chamber,

                Maggots,

                Stop watch.

We are going to put twenty maggots into the choice chamber. Every thirty seconds we will count to see how many maggots there are

...read more.

Middle

330

12

8

360

12

8

390

14

6

420

6

14

450

2

18

480

16

4

510

17

3

540

19

1

570

14

6

600

12

8

Total

232

168

Angle =5

Time (s)

Number of maggots

Top

Bottom

30

10

10

60

11

9

90

12

8

120

11

9

150

16

4

180

15

5

210

10

10

240

12

8

270

12

8

300

11

9

330

10

10

360

9

11

390

15

5

420

13

7

450

12

8

480

18

2

510

11

9

540

12

8

570

14

6

600

12

8

Total

246

154

Angle =10

Time (s)

Number of maggots

Top

Bottom

30

10

10

60

15

5

90

12

8

120

12

8

150

12

8

180

11

9

210

10

10

240

13

7

270

7

13

300

11

9

330

14

6

360

14

6

390

12

8

420

12

8

450

13

7

480

13

7

510

16

4

540

14

6

570

11

9

600

18

2

Total

250

150

Angle =10

...read more.

Conclusion

Evaluation

I thick that my work was quite accurate because we always tried to get the same equipment each week and did the experiment in the same place. So that the weren’t as many variables.

If I were to do this experiment again I would try to do all the tests on the same day so we used the same maggots and conditions for all the tests.

...read more.

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