When we are arguing with someone, we need to use evidence to support our point of view. We can use ‘because’ or ‘because of’ to give a reason or ‘so’ to show a result of a situation. Complete the sentence using because, because of or so.

______________the magnitude of the energy loss is greater for phosphorescence than for fluorescence, phosphorescence occurs at longer wavelengths than fluorescence.

The sentence below describes a process in an experiment. Match the verb in bold in the sentence to the correct definition.

As the gas cools, the water vapour condenses and is caught in the conical flask.

Read the following extract and choose the form of communication it might come from.

... more people were pain-free when using the handheld device than those who had used an identical dummy device. Although the study by Lipton et al. (2010) has reliable results, there are some points to consider when putting these findings into context. Importantly, the results will need to be verified in larger trials that directly compare ...

Choose the correct word to complete the sentence.

New analyses on Antarctic samples have found no ... iridium imprint above background due to cosmic dust.

The sentence below describes a process in an experiment. Match the verb in bold in the sentence to the correct definition.

Plutonium 239 was extracted from the sample using nitric acid.

Below is the summary of an experiment. Read the summary and then choose which word correctly completes the heading.

Practical/Theoretical research

Murray Gell-Mann and George Zweig proposed that particles such as protons and neutrons were not elementary particles, but instead were composed of combinations of quarks and antiquarks.

Complete the sentence by choosing the correct preposition.

First, leucine was separated ... other amino acids in the protein hydrolysate.

Match the definition to the verb in the box.

to decay or to break down into smaller parts

When we are arguing with someone, we need to use evidence to support our point of view. We can use ‘because’ or ‘because of’ to give a reason or ‘so’ to show a result of a situation. Complete the sentence using because, because of or so.

______________the wave of depolarisation running along the cell, a series of new action potentials is triggered.

Below is the summary of an experiment. Read the summary and then choose which word correctly completes the heading.

External/Internal validity

The students were carefully matched for social status, subject area, ethnicity, education level, parental smoking, and exposure to targeted advertising.