NEXT 15 20 25 510 Let’s Get Physical Don’t Be Dense Water Water Everywhere Chemical Romance Feelin’ the Heat…..or Not 5 5 5 5 10 15 20 25.

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152025510Lets GetPhysicalDont Be DenseWater Water EverywhereChemicalRomanceFeelin the Heat..or Not555510101010151515152020202525252520Big Board Facts12Team Scores3456Big PointsQuestion08Today'sTopicsNEXTBig PointsBack to BoardNEXTDont BeDenseWater WaterEverywhereNEXTChemicalRomanceNEXTFeelin theHeat or.NotNEXTTopic 1Question for 5 PointsWhat is a physical change?Show AnswerTopic 1Answer for 5 PointsPhysical change a change that affects one or more physical properties of a substance but does not change what the substance is made up of. Back to BoardShow AnswerTopic 3Question for 15 PointsIce is less dense than water, therefore it floats. What physical property of water allows this to happen?Topic 1Question for 15 PointsGive 3 examples of a physical property I demonstrated in class. Choose 1 and explain why it is a physical property.Show AnswerTopic 4Question for 20 PointsThink of an object with one of the 3 chemical properties. Identify which chemical property you chose and explain a chemical change that object can go through. Show AnswerTopic 5Question for 25 PointsIf given 2 reactions, give 2 ways you could determine which reaction was endothermic and 2 ways to determine which reaction was exothermic.Show AnswerTopic 1Answer for 20 PointsMelting pointYou can melt a solid stick of butter into a liquid. It is still butter, it has only changed the state of matter.

Back to BoardTopic 2Question for 5 PointsDefine densityShow AnswerTopic 3Question for 5 PointsTrue or False?Water is the substance that exists naturally in the 3 states of matter (solid, liquid, gas)Show AnswerTopic 4Question for 5 PointsWhat is a chemical change?Show AnswerTopic 5Question for 5 PointsWhat does the suffix -thermic mean?Show AnswerTopic 2Question for 10 PointsThe mass of an object = 10 grams. The volume of an object = 2 ml. What is the density?Show AnswerShow AnswerTopic 3Question for 10 PointsGive 2 examples of a property of water (we did 6 different ones in stations)

Topic 4Question for 10 PointsList the common chemical properties (there are 3)Show AnswerShow AnswerTopic 5Question for 10 PointsWhat do the prefixes endo- and exo mean?Topic 2Question for 15 PointsHow would you measure the density of a wooden block?Show AnswerTopic 4Question for 15 PointsGive 3 examples of a chemical property I demonstrated in class. Choose 1 and explain why it is a chemical property.Show AnswerTopic 5Question for 15 Points

Show AnswerWhat is the difference between an endothermic reaction and exothermic reaction?

Show AnswerTopic 3Question for 20 PointsWhat is the difference between cohesion and adhesion?Topic 2Question for 20 PointsHow would you measure the density of an irregular object such as a small, oddly shaped rock?Show AnswerTopic 3Answer for 5 PointsTRUEBack to BoardTopic 4Question for 25 PointsShow AnswerList the 6 pieces of evidence that show a chemical change has happened. How does temperature affect chemical changes?Topic 3Question for 25 Choose 1 of the 6 properties of water and explain why it is essential to life on Earth?

Show AnswerTopic 2Question for 25 PointsIf given 5 liquids, (honey, water, oil, corn syrup, and dish soap), design an experiment to test the density of the liquids.

Show AnswerTopic 3Answer for 15 PointsWater expands when it freezes making the volume larger in solid form than liquid form. Ice is 9% less dense than water.

Back to BoardTopic 5Question for 20 PointsWhy does your hand feel cold when holding an ice cube? How is this similar to an endothermic reaction?

Show AnswerThe "Big Points"QuestionShow QuestionTopic 3Question for 25 PointsSolvent water dissolves many substances and allows our cells to use valuable nutrients, minerals, and chemicals in biological processes. Surface tension plays a part in our body's ability to transport these materials all through ourselves. Back to BoardTopic 4Answer for 5 PointsChemical change - causes a substance to change into an entirely new substanceBack to BoardTopic 4Answer for 10 PointsFlammability, reactivity, rusting/corrosion/oxidationBack to BoardTopic 4Answer for 15 PointsBurning a marshmallow, rusted scissors, Alka-Seltzer in waterBurning a marshmallow it has turned into a new substanceBack to BoardTopic 4Answer for 20 PointsReactivity baking soda and vinegar react and produce a gas. They have changed into new substancesBack to BoardBack to BoardGasOdorHeatProduction of a solidLight or soundChange in colorHigher temperatures speed up reactions, colder temperatures slow down reactionsTopic 5Answer for 5 PointsheatBack to BoardTopic 5Answer for 10 PointsEndo into or absorbExo out of or releaseBack to BoardTopic 5Answer for 15 PointsEndothermic a reaction that absorbs heat causing the surrounding area to feel cool/cold. Exothermic a reaction that releases heat causing the surrounding area to feel warm/hot.

Back to BoardTopic 5Answer for 20 PointsThe heat from your hand is transferred to the ice cube. You feel cold because heat is leaving your hand. In endothermic reactions, heat leaves the surrounding area and goes into the reaction making the surroundings feel cold.

Back to BoardTopic 5Answer for 25 Points1. temperature increases, heat is released2.feels warm to the touch(exothermic)1. temperature decreases, heat is absorbed2.feels cold to the touch(endothermic). Back to BoardBig PointsQuestionExplain how photosynthesis are related (but opposite) reactions. Use the formulas, what each needs & produces, and how they are dependent on each other.Show Answer302928272625242322212019181716151413121110987654321