Comparing Solutions - 3rd Grade Science
Card 1 of 15
What is a criterion you can use to compare two solutions (mixtures) in science?
What is a criterion you can use to compare two solutions (mixtures) in science?
Tap to reveal answer
A rule for comparison, such as color, clarity, or how fast it dissolves. Criteria are standards used to evaluate and compare different solutions.
A rule for comparison, such as color, clarity, or how fast it dissolves. Criteria are standards used to evaluate and compare different solutions.
← Didn't Know|Knew It →
What criterion describes how see-through a solution is?
What criterion describes how see-through a solution is?
Tap to reveal answer
Clarity (transparent, cloudy, or opaque). Transparent means completely see-through, while opaque blocks all light.
Clarity (transparent, cloudy, or opaque). Transparent means completely see-through, while opaque blocks all light.
← Didn't Know|Knew It →
What criterion describes the way a solution looks, such as red, brown, or clear?
What criterion describes the way a solution looks, such as red, brown, or clear?
Tap to reveal answer
Color. Visual appearance helps identify and distinguish between different solutions.
Color. Visual appearance helps identify and distinguish between different solutions.
← Didn't Know|Knew It →
What criterion describes whether a solution has visible pieces that settle out?
What criterion describes whether a solution has visible pieces that settle out?
Tap to reveal answer
Presence of particles or sediment. Undissolved particles indicate incomplete mixing or oversaturation.
Presence of particles or sediment. Undissolved particles indicate incomplete mixing or oversaturation.
← Didn't Know|Knew It →
What criterion describes how quickly a solute mixes evenly into a solvent?
What criterion describes how quickly a solute mixes evenly into a solvent?
Tap to reveal answer
Dissolving rate (how fast it dissolves). Faster dissolving means the solute spreads through the solvent more quickly.
Dissolving rate (how fast it dissolves). Faster dissolving means the solute spreads through the solvent more quickly.
← Didn't Know|Knew It →
What criterion describes whether a solution stays mixed over time without separating?
What criterion describes whether a solution stays mixed over time without separating?
Tap to reveal answer
Stability (does not separate over time). True solutions remain uniformly mixed without settling or separating.
Stability (does not separate over time). True solutions remain uniformly mixed without settling or separating.
← Didn't Know|Knew It →
Which solution has the faster dissolving rate if A dissolves in $30$ s and B dissolves in $60$ s?
Which solution has the faster dissolving rate if A dissolves in $30$ s and B dissolves in $60$ s?
Tap to reveal answer
Solution A. A dissolves in half the time, making it twice as fast as B.
Solution A. A dissolves in half the time, making it twice as fast as B.
← Didn't Know|Knew It →
Which solution is clearer if A is cloudy and B is transparent?
Which solution is clearer if A is cloudy and B is transparent?
Tap to reveal answer
Solution B. Transparent solutions allow light to pass through without scattering.
Solution B. Transparent solutions allow light to pass through without scattering.
← Didn't Know|Knew It →
Which solution has more sediment if A has a layer at the bottom and B has none?
Which solution has more sediment if A has a layer at the bottom and B has none?
Tap to reveal answer
Solution A. Sediment forms when particles don't fully dissolve or settle out.
Solution A. Sediment forms when particles don't fully dissolve or settle out.
← Didn't Know|Knew It →
Which solution is more stable if A separates into layers after $10$ minutes and B stays mixed?
Which solution is more stable if A separates into layers after $10$ minutes and B stays mixed?
Tap to reveal answer
Solution B. Stable solutions maintain uniform distribution without separating.
Solution B. Stable solutions maintain uniform distribution without separating.
← Didn't Know|Knew It →
Identify the best criterion to compare two solutions if the goal is to see which has fewer visible particles.
Identify the best criterion to compare two solutions if the goal is to see which has fewer visible particles.
Tap to reveal answer
Clarity (cloudiness) or presence of particles. Both criteria assess solution transparency and particle content.
Clarity (cloudiness) or presence of particles. Both criteria assess solution transparency and particle content.
← Didn't Know|Knew It →
Identify the best choice using the criterion “uses less water”: A uses $2$ cups, B uses $3$ cups.
Identify the best choice using the criterion “uses less water”: A uses $2$ cups, B uses $3$ cups.
Tap to reveal answer
Solution A. $2 < 3$ cups, so A conserves more water.
Solution A. $2 < 3$ cups, so A conserves more water.
← Didn't Know|Knew It →
Which option best meets the criterion “safest” if A uses fire and B uses no heat?
Which option best meets the criterion “safest” if A uses fire and B uses no heat?
Tap to reveal answer
Solution B. No heat is safer than using fire, which can cause burns.
Solution B. No heat is safer than using fire, which can cause burns.
← Didn't Know|Knew It →
Which criterion checks whether a solution can be done with the materials, time, and tools available?
Which criterion checks whether a solution can be done with the materials, time, and tools available?
Tap to reveal answer
Feasibility. Feasible solutions can actually be completed with what you have.
Feasibility. Feasible solutions can actually be completed with what you have.
← Didn't Know|Knew It →
Which criterion checks whether a solution is fair and uses the same rules for all options?
Which criterion checks whether a solution is fair and uses the same rules for all options?
Tap to reveal answer
Fairness. Fair solutions treat everyone equally without bias or special treatment.
Fairness. Fair solutions treat everyone equally without bias or special treatment.
← Didn't Know|Knew It →