Compare Properties Before and After - 5th Grade Science
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Which property should you record before and after mixing to check for temperature change?
Which property should you record before and after mixing to check for temperature change?
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Temperature. Heat changes indicate energy released or absorbed in reactions.
Temperature. Heat changes indicate energy released or absorbed in reactions.
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Identify the best conclusion: After mixing, the liquid turns cloudy and a solid settles out.
Identify the best conclusion: After mixing, the liquid turns cloudy and a solid settles out.
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A precipitate formed; evidence suggests a chemical change. Cloudiness and solid formation indicate a precipitation reaction.
A precipitate formed; evidence suggests a chemical change. Cloudiness and solid formation indicate a precipitation reaction.
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Which property should you compare before and after mixing to test for an energy change?
Which property should you compare before and after mixing to test for an energy change?
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Temperature. Heat absorbed or released indicates chemical energy changes.
Temperature. Heat absorbed or released indicates chemical energy changes.
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What does it mean if the mixture can be separated by evaporation after mixing?
What does it mean if the mixture can be separated by evaporation after mixing?
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A dissolved solid was present; it is a solution (mixture). Evaporation removes solvent, leaving dissolved substance behind.
A dissolved solid was present; it is a solution (mixture). Evaporation removes solvent, leaving dissolved substance behind.
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Identify the term for a mixture that looks the same throughout after mixing.
Identify the term for a mixture that looks the same throughout after mixing.
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Homogeneous mixture (solution). All parts have the same composition and appearance.
Homogeneous mixture (solution). All parts have the same composition and appearance.
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Identify the term for a mixture with visibly different parts after mixing.
Identify the term for a mixture with visibly different parts after mixing.
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Heterogeneous mixture. Different regions have different compositions or appearances.
Heterogeneous mixture. Different regions have different compositions or appearances.
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What property change after mixing most strongly suggests a solid formed from liquids?
What property change after mixing most strongly suggests a solid formed from liquids?
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A precipitate forms (new solid appears). Solid particles forming from mixed liquids shows a chemical reaction.
A precipitate forms (new solid appears). Solid particles forming from mixed liquids shows a chemical reaction.
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What property change after mixing most strongly suggests a gas was produced?
What property change after mixing most strongly suggests a gas was produced?
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Bubbling or fizzing appears. Gas formation indicates a chemical reaction occurred.
Bubbling or fizzing appears. Gas formation indicates a chemical reaction occurred.
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Which observation is the best evidence that mixing caused a chemical change?
Which observation is the best evidence that mixing caused a chemical change?
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Formation of a new substance. New substances have different properties than the originals.
Formation of a new substance. New substances have different properties than the originals.
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Identify the best conclusion: After mixing, the substances can be separated by filtering.
Identify the best conclusion: After mixing, the substances can be separated by filtering.
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No new substance is confirmed; it is likely a physical mixture. Separation by filtering shows substances didn't chemically react.
No new substance is confirmed; it is likely a physical mixture. Separation by filtering shows substances didn't chemically react.
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What observation after mixing is evidence of an energy change without heating the container?
What observation after mixing is evidence of an energy change without heating the container?
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The mixture temperature changes. Temperature change without external heat indicates a chemical reaction.
The mixture temperature changes. Temperature change without external heat indicates a chemical reaction.
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What is the definition of a chemical change when substances are mixed?
What is the definition of a chemical change when substances are mixed?
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A change that forms one or more new substances. The original substances react to create different substances.
A change that forms one or more new substances. The original substances react to create different substances.
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What is the definition of a physical change when substances are mixed?
What is the definition of a physical change when substances are mixed?
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A change in form or properties with no new substance formed. The original substances remain but may look different.
A change in form or properties with no new substance formed. The original substances remain but may look different.
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Which option best describes mixing sand and water: homogeneous or heterogeneous mixture?
Which option best describes mixing sand and water: homogeneous or heterogeneous mixture?
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Heterogeneous mixture. Sand particles remain visible and don't dissolve in water.
Heterogeneous mixture. Sand particles remain visible and don't dissolve in water.
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What does it mean if the mixture can be separated by filtering after mixing?
What does it mean if the mixture can be separated by filtering after mixing?
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A solid is present; it is likely a mixture, not one pure substance. Filtering separates components that didn't chemically combine.
A solid is present; it is likely a mixture, not one pure substance. Filtering separates components that didn't chemically combine.
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Which option best describes dissolving sugar in water: physical change or chemical change?
Which option best describes dissolving sugar in water: physical change or chemical change?
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Physical change. Sugar molecules spread between water molecules without reacting.
Physical change. Sugar molecules spread between water molecules without reacting.
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What observation after mixing is evidence that light energy was released?
What observation after mixing is evidence that light energy was released?
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The mixture gives off light. Light emission indicates energy release from a chemical reaction.
The mixture gives off light. Light emission indicates energy release from a chemical reaction.
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What observation after mixing is evidence of a smell change that may indicate a new substance?
What observation after mixing is evidence of a smell change that may indicate a new substance?
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A new odor appears. Different smell suggests new chemical compounds formed.
A new odor appears. Different smell suggests new chemical compounds formed.
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Which property should you compare before and after mixing to test if a new gas formed?
Which property should you compare before and after mixing to test if a new gas formed?
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Presence of bubbles or gas release. Bubbles show gas molecules forming from the reaction.
Presence of bubbles or gas release. Bubbles show gas molecules forming from the reaction.
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What observation after mixing is evidence of color change that may indicate a new substance?
What observation after mixing is evidence of color change that may indicate a new substance?
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A new color appears. Color change often indicates new chemical compounds formed.
A new color appears. Color change often indicates new chemical compounds formed.
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