N5 Scientific Skills

How can you increase the reliability of an experiment?

• Do the experiment faster

• Repeat the experiment several times and take an average of the results

• Use more suitable equipment to measure the results

• Only do the experiment once

What is 10% of 525?

• 5.25

• 525

• 52.5

• 0.525

In an experiment, what term is used to describe a variable which is changed?

• Independent Variable

• Dependent Variable

In an experiment, what term is used to describe what you measure in order to give you a result?

• Independant Variable

• Dependent Variable

Which type of athlete had the highest percentage of dark tissue cells on average?

• Cyclist

• Swimmer

• Sprinter

• Marathon Runner

What is the average time for the disc to return to the surface?

• 228

• 57

• 45.6

• 58

A scientist found six trees measuring 12m, 22m, 5m, 14m, 7m and 6m.

What was the average tree height?

• 12m

• 66m

• 6m

• 11m