Welcome to the science lab! Today, we're not just spectatorsโwe're becoming realracing scientists. Science isn't about hiding in labs writing formulasโit starts with your curiosity. The moment you wonder 'why?' as a race car crosses the finish line, that spark is the essence of science.
I. How Science Discovers Answers
When we see two cars racing on different surfaces, we can't just rely on 'feel' to decide which is faster. Scientific inquiry follows a systematic process we call PDIR (or PDAR):
- P (Plan): Questioning and Planning: Define the question you want to investigate (e.g., Does surface friction affect speed?).
- D (Do): Doing and Recording: Conduct hands-on tests and record observations precisely.
- I/A (Interpret/Analyze): Organizing and Analyzing: Look for patterns within the data.
- R/R (Report/Reflect): Communicating and Reflecting: Share findings and think about how to improve the model.
Learning Objective
Understand the common scientific inquiry process used in Grade 4: Questioning and Planning, Doing and Recording, Organizing and Analyzing, Communicating and Reflecting.
Key Vocabulary
In this investigation, we must understand:Observation,Hypothesis,Evidence, and most importantly,Fair Testing. Only under fair conditions can our data serve as strong evidence.