A graph to show the number of worms left by birds.

Day 1 Day 2 Day 3 Day 4 Day 50

5

10

15

20

25

Number of red worms leftNumber of green worms left

Conclusion

This is where you must try to explain what you have found out from your experiment. Don’t just write what happened, but try to explain why you think it happened.

For example, in an experiment about separating a salt-water solution you could write:

I think that the salt weighed more after the experiment because it was still wet. Some of the water had not evaporated, and some water particles were still trapped between the particles of salt, making it heavier.

Conclusion

I think that the salt weighed more after the experiment because it was still wet. Some of the water had not evaporated, and some water particles were still trapped between the particles of salt, making it heavier.

How many scientific words did the

writer use?

Conclusion

I think that the salt weighed more after the experiment because it was still wet. Some of the water had not evaporated, and some water particles were still trapped between the particles of salt, making it heavier.

How many scientific words did the

writer use?

How does the surface area affect the speed the object will fall?

The larger the surface area of the parachute, the slower it will fall. This is because the parachute is larger, creating more air resistance, This pushes the parachute up, but it does not completely overpower gravity. The smaller the surface area of the parachute, the faster it will fall.

How does the surface area affect the speed the object will fall?

The larger the surface area of the parachute, the slower it will fall. This is because the parachute is larger, creating more air resistance, This pushes the parachute up, but it does not completely overpower gravity. The smaller the surface area of the parachute, the faster it will fall.

How does the surface area affect the speed the object will

fall?

How many scientific words did the writer

use?

The larger the surface area of the parachute, the slower it will fall. This is because the parachute is larger, creating more air resistance, This pushes the parachute up, but it does not completely overpower gravity. The smaller the surface area of the parachute, the faster it will fall.

How does the surface area affect the speed the object will

fall?

How many scientific words did the writer

use?

We found that the spinner with the least air resistance was the medium, as its time was 0.95 sec – the quickest time. This was a weird result because we thought that the small spinner should have been the one to hit the ground before the others because it would have the least air resistance. The problems in this test are that whenever someone says “go” to drop the spinner some people have different reactions – for example, someone might click the stopwatch too early or too late. The same as when you stop the stopwatch when the spinner hits the floor. Also the person dropping the spinner may accidentally push the spinner up a little or they may not hold the spinner at the same height for each drop.

Do you think this conclusion is better or worse? Why?

How many scientific words did the writer

use?

From my results I have learnt that when you exercise your pulse rate beats faster because my heart has to pump my blood and my oxygen around my body. I have also learnt from my results that when you rest your heart does not work as hard as it does when you exercise. Some people in my class, 3H, had very funny results because they had not counted their pulse rate properly, stopped half way through when they were jogging and many more.

How does exercise affect your heart rate?

How many scientific words did the writer

use?

In conclusion, your conclusion needs to include:

• What you have found out from your investigation.

• Reasons why you think it happened.

• Scientific language.