Science Virtual Learning 6th Grade Science

Science Virtual Learning6th Grade Science:Chemical Properties and ChangesMay 15, 2020

6th Grade ScienceLesson: May 15, 2020Objectives/Learning Targets:Students will identify chemical properties and changes.

Warm UpBegin by watching this video clip.Answer these questions as youwatch:1. What were the signs thatindicated baking a cake is achemical change?2. Can you think of anotherkitchen chemical change?

Warm Up - Answer KeyBegin by watching this video clip.1. 2.Signs of a chemical change:The batter took in heat & the baked cakegave off heatThe color changed from yellow to goldenbrownA smell was produced while the cake is inthe ovenCarbon dioxide was releasedThe change is irreversibleAnswers may vary. Ex: Toasting a slice ofbread, scrambling eggs, cooking chicken

Background InformationChemical Property:A property of a substance that describeshow it reacts to other substances andchanges its chemical identity as a resultChemical Change:A change that is irreversible that changesthe physical & chemical properties of asubstance, creates a new substanceExamples of chemical properties: toxicity,combustibility, reactivity with water, acidityExamples of chemical changes: burning amatch, iron rusting, cooking chicken

Signs that a chemical reaction (change) has occurred:F- FIZZ Formation of bubbles or fizz are a sign of a chemical change.A- AROMA After a chemical change, the smell may change.R- REPLACEMENT OF COLOR OR REACTIVITY A color change or reaction may indicate a chemical change.T- TEMPERATURE CHANGE Exothermic Reaction: Heat Exits, Gets hot! Endothermic Reaction: Feels coldS- A NEW SUBSTANCE FORMS Molecules rearrange and a new substance is present.

PracticeDetermine if the following are examples ofchemical properties or changes.Chemical Change1. A change in the physical and chemicalproperties.2. A new substance is formed.Chemical Property1. Indicated how a substance reacts withsomething else.2. Matter will be changed into a newsubstance after the reaction.FlammabilityIron rustingToxicityWood rottingSilver tarnishingReacts with acidPancakes cookingMilk souringSupports combustionFood digestingReacts with airReacts with water

Practice - Answer KeyDetermine if the following are examples ofchemical properties or changes.Chemical Change1. A change in the physical and chemicalproperties.2. A new substance is formed.Chemical Property1. Indicated how a substance reacts withsomething else.2. Matter will be changed into a newsubstance after the reaction.FlammabilityPropertyIron rustingChangeToxicityPropertyWood rottingChangeSilver tarnishingChangeReacts with acidPropertyPancakes cookingChangeMilk souringChangeSupports combustionPropertyFood DigestingChangeReacts with airPropertyReacts with waterProperty

PracticeGrab your folded piece of paper from yesterday’s lesson. On the blank side,create a one-pager over chemical properties and changes. Use the directionsbelow to create your one-pager.1.2.3.4.5.Make sure your one-pager has a TITLE.Include four pictures to represent chemicalproperties and changes.Include five vocabulary words expressing chemicalproperties and changes.Include two questions that you are still wonderingabout chemical properties and changes.Connect your one-pager to your life by drawingsomething in your home that you can describe itschemical properties!

Practice - Answer KeyHere’s an example!

Additional Practice1. Test your knowledge of physical & chemical changes bycompleting this chart.2. IXL - Compare physical and chemical changes. Pleasecomplete the five free practice questions. You do not needto log in.3. Review physical and chemical properties and changesplaying this Gimkit.

Examples of chemical changes: burning a match, iron rusting, cooking chicken. Signs that a chemical reaction (change) has occurred: F- FIZZ Formation of bubbles or fizz are a sign of a chemical change. A- AROMA After