Turn a physical situation into a model you can explain. Connect the picture, quantities, assumptions, and equations before interpreting the answer.
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Science
Connect what you observe to an explanation you can examine. Explore physics, chemistry, and biology through the models, measurements, and evidence used in each discipline.
Find the topic you need
Explore science
Connect particles, equations, and measurements. Understand what a chemical expression represents before using it to explain a reaction or calculate a quantity.
Understand how living structures and processes work together. Connect a term to its role, follow the sequence, and explain the idea in your own words.
What you’ll learn
- Distinguish an observation, a model, and a conclusion.
- Choose a discipline and a specific skill to explore.
- Explain what evidence supports an answer and what remains uncertain.
Start from the question and what is known
Identify what changed, what was measured, and what needs explaining. A written problem may provide values and assumptions; an observation may leave several explanations possible. Keep those two kinds of information distinct before choosing a model or calculation.
Give the model a clear meaning
An equation describes a relationship. A force diagram represents an object and the forces acting on it. A particle model or biological diagram highlights selected structures and interactions. Explain which parts of the model matter to the question and which details it leaves out.
Connect the disciplines without blurring them
Physics studies relationships such as forces, motion, and energy. Chemistry connects substances, particles, reactions, and quantities. Biology examines living structures, processes, and systems. A question may cross those boundaries, but each part still needs the vocabulary and evidence appropriate to it.
Check what the evidence supports
Keep conditions, units, and the scope of a result visible. A useful diagram can suggest an explanation without proving every claim about it. Check calculations, compare the explanation with the observations, and identify what additional information would be needed for a broader conclusion.
Worked example
An observation and an explanation are different steps
Suppose the same toy car travels different distances across two surfaces. The distances are observations. Friction may form part of an explanation, but the comparison also depends on how the car was released and what else changed. A scientific explanation connects the evidence to a model and makes those conditions visible.
Keep exploring
PhysicsTurn a physical situation into a model you can explain. Connect the picture, quantities, assumptions, and equations before interpreting the answer.ChemistryConnect particles, equations, and measurements. Understand what a chemical expression represents before using it to explain a reaction or calculate a quantity.BiologyUnderstand how living structures and processes work together. Connect a term to its role, follow the sequence, and explain the idea in your own words.Reading dataRead a table or chart in context and summarize a small data set. Distinguish mean, median, and range instead of expecting one number to tell the whole story.
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