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Scientific Method
Scientific Method Redo
| Question | Answer |
|---|---|
| Scientific Method | A process that scientists use to investigate and answer questions about the natural world. It involves a series of logical steps. |
| Observation | Using your five senses (or scientific tools) to gather information about a phenomenon. This is often the first step in the scientific method. |
| Question | A specific, testable inquiry that arises from an observation. It guides the entire scientific investigation. |
| Hypothesis | An educated guess or a testable prediction that answers the question. It's often written in an "If... then... because" format. For example: "If I add fertilizer to a plant, then it will grow taller because the fertilizer contains nutrients." |
| Experiment | A carefully designed procedure used to test a hypothesis. |
| Independent Variable | The one thing that is intentionally changed by the scientist to test the hypothesis. It's also called the "manipulated variable." |
| Dependent Variable | The factor that is measured or observed during the experiment. Its value "depends" on the changes made to the independent variable. It's also called the "responding variable." |
| Controlled Variables / Constants | All the other factors in an experiment that are kept the same to ensure a fair test. |
| Conclusion | A summary of the results of the experiment. It explains whether or not the data supported the hypothesis. |
| Control Group | The standard or normal group in a scientific experiment that you compare your results to. |
| Experimental Group | The group in a science experiment that receives the new treatment or the specific condition being tested |
| Engineering | Using science, math, and creativity to design and build things that solve problems. |
| Design | The plan or drawing created before building something. It's figuring out how your solution will work. |
| Problem | A challenge or need that engineers try to solve or meet. |
| Criteria | The things your design must do to be considered successful (the goals). Example: The car must hold an egg. |
| Constraint | The limitations or rules you must follow, like materials, time, or cost (the limitations). Example: You can only use plastic straws. |
| Brainstorm | To think of many possible ideas or solutions to a problem, usually in a group. |
| Prototype | An early, working model of your solution that you can test. |
| Test | To check if your prototype works and how well it meets the criteria and constraints. |
| Iterate/Iteration | To repeat a process of building, testing, and improving your design. You keep making changes until the solution is better. |
| Solution | The object, system, or process you design and create to successfully solve the problem. |
| Modify | To change or adjust a design after testing it to make it better. (This is part of the "Improve" step in iteration.) |
| Evaluate | To look at your design and test data to decide how well it met the criteria and constraints. |
| Chassis | The main frame or base of a vehicle (like your balloon car) where all the other parts, such as the axles and wheels, are attached. |
| Axle | A rod or shaft that runs through the center of a wheel or pair of wheels. It allows the wheels to turn. |
| Bearing | A part that helps reduce friction and supports a moving part, like an axle. On your balloon car, this was often the straw or tube the axle went through. |
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