Cause & Effect

 Practice

A. Read the following sentences. Decide if the words in bold are the cause or the effect on the line. Then, underline the "signal" word or phrase.

1. Early man used weapons because they needed to find food. (effect)
2. The glaciers began to melt; therefore, the land bridge between Asia and North America became flooded. (effect)
3. Because they wanted to learn about different civilizations that existed (cause), archaeologists studied artifacts. 
4. Early man slowly started to grow food(effect); and as result, their lives became easier.
5. My sister was very tired (cause) because she stayed up past midnight.

Read the sentences and find the cause and effect. The first one has been done for you.

1. The milk spilled all over the floor, so Jane got a mop and cleaned it up. Cause: milk spilled, effect: Jane mopped.
2. Siti has planned a trip to her uncle's house because she loves her cousins. Cause: Planned a trip to her uncle's house, effect: she loves her cousins
3. The green house gases trap the heat in the air, so the Earth becomes warmer. Cause: The green house gases trap the heat in the air, effect: Earth becomes warmer
4. Because the Sumatran tigers were almost extinct, the Indonesian government declared them as endangered species. Cause: Sumatran tigers were almost extinct, effect: Indonesian government declared them as endangered species
5. Animals are becoming extinct because humans are moving into their habitats. Cause: humans are moving into their habitats, effect: Animals are becoming extinct