- Early man used weapons because they needed to find food.
They need to find food (cause)
Early man used weapons (effect)
Because (signal word/phrase)
- The glaciers began to melt; therefore, the land bridge between Asia and North America become flooded.
The land bridge between Asia and North America become flooded (effect)
The glaciers began to melt (cause)
Therefore (signal word)
- Because they wanted to learn about different civilizations that existed, archaeologists studied artifacts.
They wanted to learn about different civilizations that existed (cause)
Archaeologists studied artifacts (effect)
Because (signal phrase/word)
- Early man slowly started to grow food, and as a result, their lives became easier.
Early man slowly started to grow food (cause)
