W1.d1 Notes
From 2nd Book
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Category: What is Chemistry?
- Matter: Anything that has mass and occupies space.
- Properties: Characteristics used to describe matter (e.g., color, density, melting point).
- Chemical Reaction: A process where substances change into new substances.
- Atom: The smallest unit of an element that retains its chemical properties.
- Molecular Chemistry: The study of molecules and their interactions.
Category: Branches of Chemistry
- Organic Chemistry: The study of carbon-containing compounds.
- Inorganic Chemistry: The study of non-carbon-based substances, such as metals and minerals.
- Analytical Chemistry: The branch of chemistry focused on identifying the composition of substances.
- Biochemistry: The study of chemical processes within living organisms.
- Physical Chemistry: The branch that deals with the relationship between energy and matter in chemical systems.
Category: Everyday Chemistry
- Baking Soda (Sodium Bicarbonate): A compound used in cooking that produces carbon dioxide when heated or mixed with acids.
- Oxidation: A chemical reaction where a substance combines with oxygen (e.g., rusting).
- Vinegar: An acidic liquid often used in cooking and cleaning (acetic acid).
- Thermal Energy: Heat produced during chemical reactions.
- Batteries: Portable devices that convert chemical energy into electrical energy.
Category: The Scientific Method
- Question: A query or observation that begins the scientific method process.
- Hypothesis: A testable statement or prediction based on observations.
- Experiment: A procedure to test a hypothesis by controlling variables.
- Independent Variable: The variable intentionally changed in an experiment.
- 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.
Category: Chemistry in Food
- Cream of Tartar: A stabilizing agent often paired with baking soda in baking.
- Pickling: A preservation method using acidic solutions (e.g., vinegar).
- Maillard Reaction: A chemical reaction between amino acids and sugars, resulting in browning during cooking.
- Rennet: An enzyme used to curdle milk during cheese production.
- Solubility: The ability of a substance to dissolve in a solvent, such as sugar dissolving in water