W1:Day 2: Introduction to Chemistry: Difference between revisions

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#* Printable diagrams of the scientific method (optional).
#* Printable diagrams of the scientific method (optional).
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=== '''Category: What is Chemistry?''' ===
=== '''Category: What is Chemistry?''' ===


* '''$100:''' ''This branch of science studies matter, its properties, and how it changes during reactions.'' '''Answer:''' What is chemistry?
* '''Matter:''' Anything that has mass and occupies space.
* '''$200:''' ''Chemistry is sometimes called the “central science” because it bridges these two sciences.''  '''Answer:''' What are physics and biology?
* '''Properties:''' Characteristics used to describe matter (e.g., color, density, melting point).
* '''$300:''' ''This term refers to the smallest unit of a chemical element that retains its properties.''  '''Answer:''' What is an atom?
* '''Chemical Reaction:''' A process where substances change into new substances.
* '''$400:''' ''Chemistry impacts our daily lives in this way, from cooking to cleaning to powering cars.''  '''Answer:''' What is by driving chemical reactions?
* '''Atom:''' The smallest unit of an element that retains its chemical properties.
* '''$500:''' ''This term describes the study of the interactions and structure of tiny particles too small to see with the naked eye.''  '''Answer:''' What is molecular chemistry?
* '''Molecular Chemistry:''' The study of molecules and their interactions.


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=== '''Category: Branches of Chemistry''' ===
=== '''Category: Branches of Chemistry''' ===


* '''$100:''' ''This branch studies carbon-containing compounds and is often associated with living organisms.''  '''Answer:''' What is organic chemistry?
* '''Organic Chemistry:''' The study of carbon-containing compounds.
* '''$200:''' ''The study of metals, minerals, and other non-carbon-based substances belongs to this branch.''  '''Answer:''' What is inorganic chemistry?
* '''Inorganic Chemistry:''' The study of non-carbon-based substances, such as metals and minerals.
* '''$300:''' ''This branch focuses on the analysis of substances to determine what they're made of.''  '''Answer:''' What is analytical chemistry?
* '''Analytical Chemistry:''' The branch of chemistry focused on identifying the composition of substances.
* '''$400:''' ''The study of chemical processes in living organisms, like digestion, belongs to this branch.''  '''Answer:''' What is biochemistry?
* '''Biochemistry:''' The study of chemical processes within living organisms.
* '''$500:''' ''This branch explores how energy and matter interact in chemical systems.''  '''Answer:''' What is physical chemistry?
* '''Physical Chemistry:''' The branch that deals with the relationship between energy and matter in chemical systems.


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=== '''Category: Everyday Chemistry''' ===
=== '''Category: Everyday Chemistry''' ===


* '''$100:''' ''When you bake bread, this chemical compound helps it rise by producing carbon dioxide gas.''  '''Answer:''' What is baking soda (or sodium bicarbonate)?
* '''Baking Soda (Sodium Bicarbonate):''' A compound used in cooking that produces carbon dioxide when heated or mixed with acids.
* '''$200:''' ''The rusting of metal is an example of this type of chemical reaction involving oxygen and moisture.''  '''Answer:''' What is oxidation?
* '''Oxidation:''' A chemical reaction where a substance combines with oxygen (e.g., rusting).
* '''$300:''' ''This common household substance, known for its acidic properties, is often used in cleaning and pickling.''  '''Answer:''' What is vinegar?
* '''Vinegar:''' An acidic liquid often used in cooking and cleaning (acetic acid).
* '''$400:''' ''The chemical process of combining hydrogen and oxygen to create water releases this form of energy.''  '''Answer:''' What is heat (or thermal energy)?
* '''Thermal Energy:''' Heat produced during chemical reactions.
* '''$500:''' ''These portable energy sources, found in devices like phones, rely on chemical reactions to produce electricity.''  '''Answer:''' What are batteries?
* '''Batteries:''' Portable devices that convert chemical energy into electrical energy.


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=== '''Category: The Scientific Method''' ===
=== '''Category: The Scientific Method''' ===


* '''$100:''' ''The first step in the scientific method involves making this type of statement or observation.''  '''Answer:''' What is a question (or hypothesis)?
* '''Question:''' A query or observation that begins the scientific method process.
* '''$200:''' ''The scientific method relies on this process to test a hypothesis.''  '''Answer:''' What is experimentation?
* '''Hypothesis:''' A testable statement or prediction based on observations.
* '''$300:''' ''This variable is the one that scientists deliberately change during an experiment.''  '''Answer:''' What is the independent variable?
* '''Experiment:''' A procedure to test a hypothesis by controlling variables.
* '''$400:''' ''The scientific method requires these measurable outcomes to evaluate a hypothesis.''  '''Answer:''' What are data (or results)?
* '''Independent Variable:''' The variable intentionally changed in an experiment.
* '''$500:''' ''In an experiment, this type of group is used as a baseline and does not receive the experimental treatment.'' '''Answer:''' What is the control group?
* '''Control Group:''' The group in an experiment that does not receive the treatment, used as a baseline for comparison.
* '''Data:''' Measurements and observations collected during an experiment.


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=== '''Category: Chemistry in Food''' ===
=== '''Category: Chemistry in Food''' ===


* '''$100:''' ''This ingredient, often paired with baking soda, releases carbon dioxide gas to make baked goods fluffy.''  '''Answer:''' What is cream of tartar?
* '''Cream of Tartar:''' A stabilizing agent often paired with baking soda in baking.
* '''$200:''' ''The process of pickling involves soaking food in this acidic liquid to preserve it.''  '''Answer:''' What is vinegar?
* '''Pickling:''' A preservation method using acidic solutions (e.g., vinegar).
* '''$300:''' ''This chemical reaction causes browning in foods like toasted bread or grilled steak.''  '''Answer:''' What is the Maillard reaction?
* '''Maillard Reaction:''' A chemical reaction between amino acids and sugars, resulting in browning during cooking.
* '''$400:''' ''The process of turning milk into cheese relies on this enzyme to curdle the milk.''  '''Answer:''' What is rennet?
* '''Rennet:''' An enzyme used to curdle milk during cheese production.
* '''$500:''' ''Sugar dissolving in water is an example of this type of physical interaction rather than a chemical reaction.''  '''Answer:''' What is solubility?
* '''Solubility:''' The ability of a substance to dissolve in a solvent, such as sugar dissolving in water.


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