Question

3 scientific models before you read after you read this section, you should be able to answer these questions: what are the three types of scientific models? how do scientists use models to help them understand scientific information? what is a scientific model? the engineers who built the ship proteus wanted to copy the way that a penguin swam. proteus does not have feathers and is not alive. however, the way proteus moves in the water is similar to the way a penguin moves in the water. proteus is a model that helps engineers learn about how objects can move through the water. a model is something that scientists use to represent an object or process. for example, models of human body systems help you learn how the body works. models can help you learn about the past. they can even help to predict the future! however, a model cannot tell you everything about the thing it represents. this is because the model always has at least a few differences from what it represents. there are three common kinds of scientific models: physical models, mathematical models, and conceptual models. study tip compare after you read this section, make a chart comparing scientific theories and scientific laws. critical thinking 1. compare a globe is a model of the earth. give one way that a globe is similar to the earth and one way that they are different. take a look 2. infer why would a scientist use a spring toy to model a sound wave?

Explanation:

1. A globe is similar to the Earth in that it is spherical in shape, representing the Earth's overall form. It is different because it is much smaller in size and may not accurately represent all geographical features in exact proportion.
2. A scientist might use a spring - toy to model a sound wave because the coils of the spring can show the compression and rarefaction of a sound wave, similar to how the particles in a medium move during sound wave propagation.

Answer:

1. Similar: Both are spherical. Different: Globe is much smaller.
2. To show compression and rarefaction like in a sound wave.