Scientific Operations Worksheets Grade 7

1. (6.4 × 10⁸) ÷ (1.6 × 10²) = ?
2. A scientist is studying the distance between Earth and a newly discovered exoplanet. The distance is approximately 4.2 × 10^13 kilometers. A space probe travels at a constant speed of 3.5 × 10^4 kilometers per hour. How many hours will it take the probe to reach the exoplanet? Express your answer in scientific notation.
3. A cylindrical water tank is drawn with a height of 2.5 × 10² cm and a diameter of 8.0 × 10¹ cm. Using π = 3.14, what is the volume of the tank in cubic centimeters? Express your final answer in scientific notation.

…and 5 more problems

1. A research lab is studying bacterial growth. A scientist observes that a particular bacterial colony doubles in size every 3 hours. If the colony starts with 5,000 bacteria, how many bacteria will there be after 15 hours?
2. (8.8 × 10⁷) ÷ (2.2 × 10³) = ?
3. A rectangular prism has a length of 2.5 × 10³ cm, a width of 8 × 10² cm, and a height of 4 × 10¹ cm. What is the volume of this prism in scientific notation?

…and 6 more problems

1. A triangular prism is drawn with a triangular base that is a right triangle. The legs of the triangular base are 6 cm and 8 cm, and the height of the prism is 15 cm. What is the total surface area of the prism in square centimeters?
2. (7.5 × 10⁷) ÷ (1.5 × 10³) = ?
3. (6.8 × 10⁷) ÷ (2.0 × 10³) = ?

…and 4 more problems