Review the words in the box below. Then read the clues. Write the words in the correct spaces in the sentences below.
apart concentrate identical pair biological curious identity still both ESP inherited surroundings close fraternal naturally uncertain coincidence

ACROSS CLUES
1. Twins are always a _______________. There are always two of them.
5. I saw identical twin girls yesterday. ______________ girls had on white shirts, blue skirts, and blue shoes.
7. _____________ means not sure.
11. Our _____________ are everything around us.
12. ______________ means exactly the same.
13. Kathy and Laura are very good friends. They are very ___________ .
14. I am learning a lot about twins, but I am ___________ interested in learning more.
15. Your _____________ is your character. It is who you are.
16. ______________ is the ability to feel something that other people feel but without using your five senses.
DOWN CLUES
2. Your hair color and your eye color are ______________ from your parents.
3. Some twins do not like to be _____________ . They like being together all the time.
4. A ______________ is something that happens accidentally, without planning.
5. Michael is my ____________ brother. We have the same mother and father.
6. When I think very hard about something, I _____________ on it.
8. ______________ means surely, of course.
9. Luis and Maria are ______________ twins. They were born on the same day and have the same mother, but one is a boy and the other is a girl.
10. I am very ______________ about twins. Do they think alike?