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A scientist uses an instrument to observe the pattern of molecules in a substance. The picture below shows what the scientist?
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What can be observed only when a substance is changed to another substance?
We can observe the relise of force when a substance is canged into another substance.
What is the measures of how rapidly its individual molecules are moving?
The measure of the average speed of a large number of molecules, particularly in a gas, is their average speed, or, better, their average kinetic energy. On the scale where we're able to observe that average, it manifests itself as the pressure of the gas, and as the temperature of any substance.
When examining the physical properties of an unknown substance characteristics is unsafe to observe?
This depends on the nature of this substance; precautions are necessary.
A substance always has properties even though they are difficult to observe?
chemical properties
What properties of substances can you observe and how do these properties determine the usefulness or hazards of a substance?
You can observe physical, chemical, and characteristic properties of a substance and can be used to determine the usefulness of a substance by, giving us information about the substance usually using our 5 senses which are physical properties. Or being able to describe the substances ability to undergo changes to its composition to produce one or more new substances, chemical property. Or even just being able to identify whether or not the substance is pure or not can help us determine if the substance is hazardous or not. two other properties I did not mention were the qualitative and the quantitative properties.
A scientist uses an instrument to observe the pattern of molecules in a substance what does vapor look like?
Solids
The first scientist to observe evidence of the random motion of molecules was?
It was Brown. They named it Brownian motion after her.
Why is it important for a scientist to have good observational skills?
because scientist cant observe well if they didnt have any good observation skills
Why making measurements is important to scientist?
this is important because the measurements help scienstst to observe the right amount of a substance they are adding to another this also give scientist the approximate measurements of volume
How can scientist observe atoms?
By using a telliscope
What is the first observe cells?
Robert Hooke an Englishman was the first scientist to observe cells
What instrument is used to observe the planets?
telescope
A scientist wants to observe the structure that joins a cell to neighboring cells. How should the scientist observe the detailed structure of the cell?
The scientist should use an electron microscope
You can use your senses to observe of a substance?
A substance must have the properties of physical properties in order to be observed and measured.
How do scientist investgate the world?
They Observe, Predict and Infer
What do scientist observe most?
Cookie monster era
How do scientist observe weather patterns?
they watch clouds.
