🔍 Key Concepts

• SI metric prefixes and their meaning (kilo, milli, micro, etc.) • Relationship between the prefix and powers of 10 (for example, 10^3, 10^-3, 10^-6) • How prefixes affect a base unit, such as meter, gram, or second

💭 Think About

• Think about whether "micro" represents a very large amount or a very small fraction of the base unit. • Compare "micro" to a prefix you know well, like "milli" (thousandth). Is "micro" smaller or larger than that? • Consider what happens numerically to a value when you apply the "micro" prefix — does it become much bigger or much smaller?

✅ Before You Answer

• Verify that "micro" corresponds to a specific power of 10 (for example, 10^? ). • Check which option correctly describes how to change a number when expressing it in micro-units (do you divide or multiply?). • Confirm that the factor involves 1,000,000 (one million) and not 1,000 (one thousand).