Question:
Which of the following is formed immediately after fertilization?
Answer:
zygote
Question:
Water at 20C in an uncovered pan is evaporating very slowly. What could be done to the water to make it evaporate more quickly?
Answer:
Heat it.
Question:
Perfume sprayed from a bottle spreads more easily in a warm room of 25C than in a cool room of 15C. Which of the following correctly compares perfume molecules at 25C to those at 15C?
Answer:
At 25C, they are moving faster.
Question:
A chemical property of a mineral is evident if the mineral
Answer:
bubbles when acid is placed on it