Sci Notation & Sig Figs

Evelyn, Scarlett, and Kai are on a space adventure! They come across an alien who communicates using scientific notation. The alien shows them the number 0.000045. Can you help them understand what this number is in scientific notation?

• 4.5 x 10^-5

• 4.5 x 10^-4

• 4.5 x 10^-6

• 4.5 x 10^-3

During a science experiment in class, Arjun, Maya, Charlotte, and their teacher are discussing the number of significant figures in the measurement 0.00340. Arjun believes there are 2 significant figures, Maya argues there's only 1, Charlotte thinks there are 3, and their teacher insists there are 4. Who is correct?

• Arjun

• Maya

• Charlotte

• Their teacher

Lily, Isla, and Anika are working on a science project about the universe. They are trying to write the distance between Earth and the Sun, which is approximately 500,000 miles, in scientific notation. Can you help them?

• 50 x 10^4

• 500 x 10^3

• 5.0 x 10^5

• 5 x 10^6

Tags

NGSS.MS-ESS1-3

Maya, Evelyn, and Luna are working on a science project. They are studying the density of a certain liquid and found its value to be 0.0200 g/cm³. They are confused about the number of significant figures in this value. Can you help them?

• 2

• 1

• 4

• 3

Harper, Emma, and Anika are studying for their science test! They come across a question about scientific notation. The question asks 'What is the correct scientific notation for the number 0.0000000078'?

• 7.8e-7

• 7.8e-8

• 7.8e-10

• 7.8e-9

During a science fair, Luna, Benjamin, and Samuel are discussing a problem. Luna says the weight of a particular object is 500 grams and it has 4 significant figures, Benjamin says it has 1, and Samuel says it has 2. Who is correct?

• Luna

• Benjamin

• Samuel

• None of them

Lily is helping Mason to convert measurements. She told him that 1 ft equals 12 inches. How many inches would 3.5 feet be?

(a)  

Benjamin has a small bag of flour that weighs 28.35 g. How many kg does the bag of flour weigh? Remember sig figs.

(a)  

Anika is learning about volume in her science class. Her teacher told her that 1 cubic inch is equivalent to a certain amount of milliliters. If 1 in³ = 1 mL, how many milliliters is 56 cubic inches?

(a)  

Mason is planning a road trip from New York to Los Angeles. He found out that the distance is approximately 2800 miles. If 1 mile is equivalent to 1.609 km, how many kilometers would his road trip be? Remember sig figs.

(a)