Category: Uncategorized

Scarlett has five equally massed pieces of lead, each weighing 400 grams. What is the total mass of the five pieces of lead? (2 points)

The picture below shows the bone structures of whale and bird. Based on the diagram, which of these statements is correct about whales and birds? (2 points)

Which of these statements best explains why the size of the refracting telescope lens is kept small at the cost of reducing its capacity to gather radiations from space? (2 points)

The diagram below shows five objects in space. Object 1 is at equal distance from Object 2, Object 3, Object 4, and Object 5. The mass of Object 2 is double the mass of Object 5. The mass of Object 4 is half of the mass of Object 5 and the mass of Object 3 is half of the mass of Object 4. Which of these statements is correct about Object 2, Object 3, Object 4, and Object 5? (2 points)

Ozone gas absorbs the ultraviolet radiations of the sun in the (2 points)

In your own words, explain how the number of sunspots can affect the overall global climate on Earth. (5 points)

Which of these statements best explains why space exploration should continue in the future? (2 points)

Carbon-14 has a half-life of 5,730 years. After how many half-lives will 120 grams of Carbon-14 decay to 15 grams? (2 points)

The distance from Saturn to Earth is 10 AU. What is the distance, in kilometers, between Saturn and Earth? (2 points)

Which of these may be damaged by increase in solar activity? (2 points)