
Physical and chemical changes
Quiz by Diana Abenes
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20 questions
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- Q1Which of the following is an example of a chemical change?Boiling waterDissolving sugar in waterRusting of ironMelting of ice30s
- Q2What happens during a physical change?The substance's appearance changes but its chemical composition remains the sameA new substance is formedEnergy is releasedAn irreversible reaction occurs30s
- Q3Which of the following is NOT a chemical change?Rusting metalBaking a cakeBurning paperChopping wood30s
- Q4Which process is an example of a chemical change?Fermentation of grapesCrushing berriesFreezing waterCutting vegetables30s
- Q5What occurs when you mix vinegar and baking soda?The color changes onlyA chemical change happens, producing carbon dioxide gasIt's just a physical mixtureThe temperature drops without any reaction30s
- Q6What type of change is boiling water?Physical changeChemical changeNuclear changeBiological change30s
- Q7Which of the following is an example of a physical change?Dissolving salt in waterBurning woodDigesting foodRusting of iron30s
- Q8What describes a chemical change?It can be easily reversedIt does not involve a temperature changeIt only changes the size of an objectIt produces a new substance with different properties30s
- Q9Which of the following is an indication of a chemical change?Dissolving a solidChange of color without other signsProduction of gasChange of state30s
- Q10What is a sign that a chemical change has occurred?A color change accompanied by gas productionThe substance meltsThe substance freezesThe substance dilutes in water30s
- Q11Which of the following is a physical change?Burning paperMelting iceDigesting foodRust forming on metal30s
- Q12What happens during a chemical change?The shape of an object changesThe size of an object changesThe color of an object changesNew substances are formed30s
- Q13Which of the following is NOT a sign of a chemical change?Temperature changeFreezing waterGas productionColor change30s
- Q14Why is burning wood considered a chemical change?It changes shapeIt changes colorIt produces ash and smokeIt gets hot30s
- Q15What is an example of a chemical change?Dissolving sugar in waterBaking a cakeMelting butterChopping an apple30s