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Scientific method
| Term | Definition |
|---|---|
| Scientific method | A step by step process used to answer scientific questions |
| Hypothesis | Predictions that can be tested, which are based on observations, research and prior knowledge. |
| Observation | Information that can be obtained by using your senses |
| Inference | A conclusion that can be drawn by analyzing your observations |
| Independent variable | The one factor that has changed throughout the experiment |
| Dependent variable | The one factor that is being measured throughout the experiment |
| Controlled variable | Factors that do not change in an experiment they provide a standard for comparison of the results of the experiment |
| Measurement | A way to make descriptions and comparisons in the world using numbers |
| Estimation | A rough measurement of a number made by predictions created using prior knowledge |
| SI unit | Standard international units established in 1960 as a general system for measurement all SI unit units are related by multiples of 10 kilo, hecto deca base, deci, senti , milli |
| Length | The distance between one point and another the meter is the basic unit of length |
| Volume | The amount of space and object takes up the liter eis the basic unit of volume |
| Mass | The amount of matter an object contains. Mass always remains constant. The basic unit of mass is the gram. |
| Weight | The amount of gravitational force exerted on an object. Weight change changes as gravity changes. If gravity increases then weight increase increases. If gravity decreases then weight decreases. |
| Temperature | A physical property used to measure how hot or cold a substance is |
| Time | A measurement of the duration of an event. The second is the basic unit of time. |
| Meniscus | The curved upper surface of a column of water in a graduated cylinder, flask, or beaker. If the meniscus is curved upward, you read the top of the line if the meniscus is curved downward, you read the bottom of the line. |
| Trial | An attempt to follow and complete the procedure of an experiment to obtain scientific data |
| Analyze | To break down think about or study. |
| Step 1 of the scientific method | Identify the question. |
| Step 2 of the scientific method | Form a hypothesis |
| Step 3 of the scientific method | Designed the experiment |
| Step 4 of the scientific method | Test, observed, record, analyze, |
| Step 5. Of the scientific method. | Draw conclusions. |
| Hypothesis component number 1 | Make a prediction – must be written in paragraphs |
| Hypothesis component 2 | Explain “why “you’ve made this particular prediction |
| Hypothesis component 3 | include data and prior knowledge to back it up |
| Conclusion component 1 | Answer the original question |
| Conclusion component 2 | Include data from the experiment |
| Conclusion component 3 | Explain whether the hypothesis was correct or not and WHY |
| More trials equal | More accurate Data |
| How many trials are needed before a scientist can publish their data | 1000 |
| Temperature measures | hot and cold |
| length measures | distance |
| volume measures | space an object takes up |
| weight measures | action of gravity on an object |
| mass measures | amount of matter in an object |
| Units tell you | how many |
| Tools are Devices used | To make measurements |
| Properties are characteristics of | substances or objects |
| The difference between a Unit and a tool is | you use the tool to find out the unit |
| The difference between a property and a unit is | the property is what you are measuring (Volume, Mass, Length, temp) the unit is how much or how many of the property you have (How many meters, how many degrees, how many grams, how many liters) |
| If I want to measure Volume what tool do I use | Graduated cylindar |
| If I want to measure Mass what tool do I use? | TBB |
| If I want to measure Length what tool do I use? | Meter Stick |
| If I want to measure Temperature what tool do I use? | Thermometer |
| Properties | Characteristics of substance or object |
Created by:
user-1984375