Question

lesson 1- science basics review observations that deal with a number or amount are called. ∘ manipulated observations ∘ quantitative observations ∘ qualitative observations ∘ operational observations

Explanation:

To solve this, we analyze each option:

• "Manipulated observations" refers to variables changed in an experiment, not about numbers/amounts.
• "Quantitative observations" are defined as observations involving numbers or amounts (measurable quantities).
• "Qualitative observations" deal with qualities (like color, texture), not numbers.
• "Operational observations" relate to how a concept is measured, not about number/amount observations.

So the correct option is the one related to numbers/amounts.

Answer:

B. quantitative observations (assuming the second option is labeled B; if the original labels were different, adjust the label but the text is "quantitative observations")