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Colour
The first scientist to study colour was Sir Isaac Newton. He was an English scientist who lived from 1642 to 1727. Newton was the first person to divide white light into different colours.
In 1861 another English scientist, James Clerk Maxwell, showed that he could make other colours by mixing the primary colours - red, blue and yellow - in different ways. These other colours are called secondary and tertiary colours.
We make secondary colours by mixing two primary colours together. For example, red and yellow become orange, yellow and blue become green, and blue and red become violet. We make tertiary colours by mixing one primary colour with one secondary colour.
We can make a room look bigger or smaller, hotter or colder by using colour. Green and blue are cold colours. They can also make a room look bigger. Red, orange and yellow are hot colours. They can make a room look smaller.
Adapted from New century readings (Book 1)
1. The passage is about ...............................
A. Sir Isaac Newton.
B. James Clerk Maxwell.
C. primary colours.
D. making colours.
2. The first scientist to study colour was ................................
A. French
B. Thai
C. Vietnamese
D. English
3. Sir Isaac Newton ...............................
A. mixed the three primary colours.
B. made many secondary colours.
C. found all the tertiary colours.
D. divided white light into different colours.
4. Blue is a ...............................
A. primary colour.
B. secondary colour.
C. tertiary colour.
D. hot colour.
5. We can use red, yellow or orange to make a room look ................................
A. bigger
B. smaller
C. colder
D. thicker
