5. Change the words in the brackets to complete the sentences. 1. The use of nuclear methods has opened up tremendous … (technology, possible). 2. The influence of nuclear physics on other branches of science was very ... (power). 3. The ... of light was measured with special instruments (intense). 4. Maria Curie’s .. of the radioactivity of uranium ores were the first step to the ... of polonium, (to observe, to discover). 5. The ... of their results show that they were obtained using different experimental techniques, (to compare).

1) technological possibilities

2) powerful

3) intensity

4) observation, discovery

5) comparison

1. The use of nuclear methods has opened up tremendous technological possibilities.

2. The influence of nuclear physics on other branches of science was very powerful.

3. The intensity of light was measured with special instruments.

4. Maria Curie's observations of the radioactivity of uranium ores were the first step to the discovery of polonium.

5. The comparison of their results shows that they were obtained using different experimental techniques.