input: OPTIONS:
- radio
- ultrasound
- loop
- echo Now, answer this question: Q: What is heard when sound waves bounce back from a surface that they can't pass through? A:
A:
output: echo

Q: In a heat map, what color represents the hottest temperatures? A:

OPTIONS:
- bright red
- orange
- pink
- bright yellow

Answer: bright yellow

Problem: OPTIONS:
- momentum
- friction
- direction
- thrust
Q: Q: What is the force pushing a rocket called? A:
Answer: thrust

Problem:OPTIONS:
- factor
- mass
- volume
- weight

Q: What is the measure of the force of gravity pulling down on an object called? A:
****
A: weight

Q: What word describes any chemical that affects the body's structure or function? A:
OPTIONS:
- treatment
- toxin
- gift
- drug
drug

Q: What is the scientific term for climates with the least moisture? A:
OPTIONS:
- mediterannean
- tropical
- polar
- arid

Answer:
arid