Tim forgot his math book, so he was unable to complete his homework.
Cause: Tim forgot his math book.
Effect: He was unable to complete his homework.
2. Keegan was hungry because he skipped lunch.
Cause: Keegan skipped lunch.
Effect: He was hungry.
3. Erin's car had a flat tire, so she called a tow truck.
Cause: Erin's car had a flat tire.
Effect: She called a tow truck.
4. Gina couldn't find the cookies because Papa hid them in the cupboard.
Cause: Papa hid the cookies in the cupboard.
Effect: Gina couldn't find them.
5. Kelly studied her spelling words and she got an A on the test.
Cause: Kelly studied her spelling words.
Effect: She got an A on her test.