Introduction-to-scientific-models-W1-Day1.pptx

A presentation about the use of different scientific models.

1. Introduction to Scientific models

2. SOLID LIQUID GAS 1. What do we call these representations of the molecules of solid, liquid and gas? 2. What is the importance of using scientific representations like this in learning science?

3. How can we visualize things that cannot be seen by the eye? How can we visualize things that is too big, and complex be examined in actuality?

4. UNLOCKING CONTENT VOCABULARY WORD MEANING Model a usually miniature representation of something Particle a relatively small or the smallest discrete portion or amount of something Matter the substance of which a physical object is composed, material substance that occupies space, has mass, composed of atoms Diagram a graphic design that explains rather that represents, a line drawing made for mathematical or scientific purposes Property a quality or trait belonging and especially peculiar to an individual or thing Solid Of uniformly close and coherent texture, retains a definite shape and size Liquid A fluid (such as water) that has no independent shape but has a definite volume and does not expand indefinitely and that is only slightly compressible Gas A fluid (such as air) that has neither independent shape or volume but tends to expand indefinitely

5. UNLOCKING CONTENT VOCABULARY WORD MEANING Melting The process in which solid substances are converted into liquids by adding heat. Freezing Is a phase transition in which a liquid turns into a solid when its temperature is lowered below its freezing point. Evaporation Is when a liquid turns into a gas Condensation Is when a gas turns into a liquid Sublimation Conversion of a substance from solid to the gaseous state without its becoming liquid Deposition Is the laying down of sediment carried by wind, flowing water, the sea or ice Energy The capacity to do work Temperature The degree or intensity of heat present in a substance or object

6. Think-pair-share What do you think a scientific model is ? Can you give an example of a scientific model you have encountered before ? Why do you think scientists use models to understand phenomena ?

7. SCIENTIFIC MODELS Scientists use models because reality, especially systems like Earth's climate, is complex and difficult to study directly. Many factors influence complex concepts, for example climate, so it's impossible to consider all of them simultaneously, that is why models are necessary.

8. Models are useful tools that help scientists understand complex systems by allowing them to analyze and make predictions. There are different types of models: physical models, conceptual models, and mathematical models.

9. MISSION Physical models are smaller and simpler representations of a thing being studied. A globe or a map is a physical model of a portion or all of Earth. Conceptual models tie together many ideas to explain a phenomenon or event. Mathematical models are sets of equations that consider many factors to represent a phenomenon. Mathematical models are usually done on computers. Simulation models use a digital prototype of a physical model to predict its performance in the real world.

10. Many models are created on computers because they can handle enormous amounts of data .. Models can be used to test ideas by simulating specific parts of a system, making it easier for scientists to understand how certain factors affect each other. Models can also be used to make predictions about the future, with the best ones considering multiple factors.

11. To assess the accuracy of a model, scientists often use past data to see if the model can accurately predict the present. Despite their usefulness, models have limitations because they are simpler than real systems and may not predict real-world behavior with absolute accuracy. However, careful construction and sufficient computing power can improve a model's accuracy.

12. 1. Analyze the given model of the atom. Just by looking at it, in your own words, describe what an atom is. 2. How did the model help you understand how people see atom back in the days of Democritus? Is it helpful and easy to understand?

13. Take Home Activity

14. Thank you very much!