Review the key ideas from Lessons 1-5, then test yourself with 10 multiple-choice questions and 3 short-answer questions.
Quick Review
Focus: Scientific data is information collected through observation or measurement. Not all information counts as scientific data; it must be objective and repeatable.
Key terms: Data, Evidence, Objective
Focus: Qualitative observations describe qualities using words. Different scientific questions require different types of observations.
Key terms: Qualitative data, Quantitative data, Discrete data
Focus: The independent variable is the factor deliberately changed by the investigator. A fair test changes only the independent variable while keeping all other conditions the same.
Key terms: Variable, Independent variable, Dependent variable
Focus: Data tables need clear headings with units for every column. Good table design reduces errors and makes patterns easier to spot.
Key terms: Data table, Column heading, Raw data
Focus: Line graphs are used to show trends over time or continuous data. The choice of graph affects how easily patterns and relationships can be seen.
Key terms: Line graph, Bar graph, Pie chart
Multiple Choice (10 questions)
1. Which is the best example of scientific data?
2. What makes data objective?
3. Which is an example of qualitative data?
4. The number of planets in our solar system is an example of:
5. In an experiment to test how exercise affects heart rate, what is the independent variable?
6. Which best describes a controlled variable?
7. Where should units be placed in a scientific data table?
8. Which column should contain the independent variable?
9. Which graph type is best for showing how a plant's height changes over four weeks?
10. A pie chart would be most appropriate for:
Short Answer (3 questions)
Put what you have reviewed to the test! Jump through the checkpoint questions in game form.
Play GameTick the box when you have finished the questions and played the game.