Science Inquiry and Hypothesis Quiz

Testable Questions

• A testable question can be answered through hands-on investigation.
• It involves manipulating one variable to observe the effect on another.

General Interest Science vs. Testable Questions

• General interest science questions are broader, while testable questions are specific and focus on causal relationships.

Creating a Good Hypothesis

• Formulating a hypothesis should be based on existing research or personal knowledge.
• A hypothesis should be clear and measurable, avoiding ambiguous language such as "may."

Observations vs. Inferences

• Observations are factual data collected through senses.
• Inferences are interpretations or conclusions drawn from observations.

Qualitative vs. Quantitative Observations

• Qualitative observations are descriptive and derived from sensory data.
• Quantitative observations involve numerical data obtained through instruments (e.g., rulers).

Writing Effective Hypotheses

• A hypothesis should be definitive, stating what is being tested and predicting an outcome.
• Effective hypotheses must be measurable to allow for experimentation.

Variables in Experiments

• Only one variable should be changed at a time in an experiment to isolate effects.

Importance of Sufficient Sample Sizes

• Utilizing multiple subjects in both control and experimental groups enhances the accuracy of results.
• Larger sample sizes provide a better basis for conclusions.

Data Presentation Methods

• Graphical data can be presented using various methods, including defining questions, forming hypotheses, gathering resources, and planning data collection.

Reasons for Unexpected Data Results

• Discrepancies between data and hypotheses could arise from an incorrect hypothesis or flawed data.