Which example illustrates a chemical change?
What is conserved in physical changes?
The atoms in a sample are close together but can slide past one another. As the atoms lose energy, they move slower. The atoms become locked in place because of attractive forces between them.
Ella makes this table to organize her notes on whether atoms gain or lose energy during the changes of state.

A cylinder at left with balls in a layer on the bottom of the cylinder has an arrow leading to a cylinder at right with balls stacked near the bottom of the cylinder.

Which property of physical changes explains why matter is conserved in a physical change?
Which statement gives two characteristics of all liquids?
If a person has the values for an object’s density and volume, what value can be calculated?
During which changes of state do atoms that cannot move past one another become free to move?
What happens to the total mass of a substance undergoing a physical change?
Four students are analyzing four different substances and recording their findings in this table.Which most describes this table?

An amount of nitrogen undergoes a physical change and increases its volume. What can be known about this physical change?
Which ranks these materials by the attraction between their atoms from the weakest to the strongest?
Which state(s) of matter have no definite shape or volume?
Which object would sink in honey, which has a density of 1.4 g/cm³?
To answer the research question "How am I going to find the information I need on the topic?” the best thing Georgia should do first is
Sergio knows that to meet the project requirements, it is essential to have
Leon has made a long list of methods to use in conducting his research. He looks at his list and feels confused and overwhelmed.
What characteristics should a credible source have? Check all that apply.balancecertaintyreliabilitydoubttrustworthiness
Which type of organization has a website ending in .edu?
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