Problem:OPTIONS:
- pre-adolescence
- adulthood
- reproductive stage
- puberty

Answer the following question given this paragraph: Puberty is the stage of life when a child becomes sexually mature. Puberty begins when the pituitary gland tells the testes to secrete testosterone in boys, and in girls the pituitary gland signals the ovaries to secrete estrogen. Changes that occur during puberty are discussed in the Male Reproductive Development and Female Reproductive Development concepts. Q: What is the name of the stage of life when a child becomes sexually mature? A:
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A: puberty

Problem:OPTIONS:
- neutrons
- protons
- shells
- electrons

Answer the following question given this paragraph: By losing an electron, the sodium atom becomes a sodium ion. It now has more protons than electrons and a charge of +1. Positive ions such as sodium are given the same name as the element. The chemical symbol has a plus sign to distinguish the ion from an atom of the element. The symbol for a sodium ion is Na + . Q: Ions can be formed when atoms lose what other particles? A:
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A: electrons

Problem:OPTIONS:
- backwards
- northwest
- uphill
- downhill

Answer the following question given this paragraph: After a heavy rain, you may find puddles of water standing in low spots. The same principle explains why water collects in ponds and lakes. Water travels downhill, so a depression in the ground fills with standing water. A pond is a small body of standing water. A lake is a large body of standing water. Most lakes have freshwater, but a few are salty. The Great Salt Lake in Utah is an example of a saltwater lake. Q: In which direction does water travel? A:
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A: downhill

Problem:OPTIONS:
- 695
- 904
- 375
- 745

Answer the following question given this paragraph: Sometimes power is measured in a unit called the horsepower. For example, the power of car engines is usually expressed in horsepowers. One horsepower is the amount of work a horse can do in 1 minute. It equals 745 watts of power. Compare the horsepowers in the Figure below to the other Figure below . Q: How many watts equals a horse power? A:
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A:
745