Scientific Comparison Worksheets Grade 7

1. Noah is comparing the masses of two large asteroids for his astronomy project. Asteroid Pallas has a mass of approximately 2.07 × 10^20 kilograms, while Asteroid Vesta has a mass of approximately 2.59 × 10^19 kilograms. How many times greater is the mass of Asteroid Pallas compared to Asteroid Vesta?
2. Tane is examining a visual chart that shows the diameters of three planets in kilometers, each written in scientific notation. The chart displays: - Planet P: 1.49 × 10⁸ km - Planet Q: 9.12 × 10⁹ km - Planet R: 3.56 × 10⁷ km If Tane arranges the planets in order from the smallest diameter to the largest diameter, what is the correct order? Write your answer as a sequence of letters separated by commas (e.g., P, Q, R).
3. Mason is studying a diagram of the solar system that shows the distances from the Sun to various planets. The distance from the Sun to Mercury is shown as 5.79 × 10⁷ km, and the distance from the Sun to Venus is shown as 1.08 × 10⁸ km. On the diagram, a third planet, Mars, is labeled with a distance of 2.28 × 10⁷ km from the Sun. Arrange the three planets (Mercury, Venus, and Mars) in order from the shortest distance to the longest distance from the Sun.

…and 4 more problems

1. (7.2 × 10⁸) × (3.0 × 10⁻⁴) ÷ (1.2 × 10³) = ?
2. Liam is comparing the energy consumption of two different countries for his environmental science project. Country X uses 7.2 × 10^15 kilowatt-hours per year, while Country Y uses 4.8 × 10^14 kilowatt-hours per year. How many times greater is Country X's energy consumption compared to Country Y's?
3. Compare: 8.7 × 10⁶ __ 9.2 × 10⁵

…and 5 more problems

1. Olivia is studying the distances of three planets from the Sun for a science project. She records the distances in scientific notation: - Mercury: 5.79 × 10⁷ km - Venus: 1.08 × 10⁸ km - Earth: 1.50 × 10⁸ km Olivia creates a visual diagram showing the planets on a number line. She places a point for each distance on the line, which is marked in increments of 1 × 10⁷ km. Based on the diagram, which planet is closest to the Sun, and what is the correct order of the planets from closest to farthest?
2. Compare: 9.8 × 10⁷ __ 1.2 × 10⁸
3. Charlotte is looking at a diagram of a number line that shows the distances of four stars from Earth, each written in scientific notation. The positions on the number line are labeled as follows: Star P is at 7.2 × 10² light-years, Star Q is at 1.7 × 10² light-years, Star R is at 2.7 × 10³ light-years, and Star S is at 4.2 × 10³ light-years. Arrange the stars in order from the closest to Earth (smallest distance) to the farthest from Earth (largest distance). Write your answer as a sequence of letters separated by commas (e.g., P, Q, R, S).

…and 4 more problems