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Alright, quick safety huddle before you head out. Think of this like setting your future lab-self up for a win. First, we’re locking in three safe bench behaviors. Say each one out loud in the “I will” form. Keep it specific. Ready? Behavior number one—what’s the first safe habit you’ll do every single time at the bench? Maybe it’s goggles on before gloves, or labeling every container, or keeping drinks far, far away. Say it now: “I will…” [pause] Nice. Behavior number two—pick something you can actually see yourself doing. Maybe tying back hair and sleeves, or wiping spills right away, or capping bottles as soon as you’re done. Say it: “I will…” [pause] Great. Behavior number three—one more to make it stick. Think clean, calm, and careful: clear workspace, fume hood for smelly stuff, no mystery liquids. Say it out loud: “I will…” [pause] Awesome. You just made a mini safety contract with yourself. Now, one hazard you’ll keep an eye on in future labs. Choose something real for your setup—hot plates, open flames, cracked glassware, chemical fumes, or incompatible chemicals. Say it clearly in the “I will watch for…” form: “I will watch for…” [pause] Good call. And what’s your one quick action if that hazard pops up? For example, turn off heat, move to the fume hood, swap damaged glass, or call the instructor. Say that too: “If I see it, I will…” [pause] Love it. That’s a scientist’s brain at work—plan, do, double-check. Fast recap: you picked three safe bench behaviors and one hazard to monitor, plus your first response step. That’s how pros avoid surprises and finish with clean data and intact eyebrows. Take a breath. Picture your bench: labeled, tidy, tools where you expect them, you in PPE. Feels good, right? You’ve got this. Safe choices, steady hands, solid science. Let’s make your next lab your calmest, safest one yet.

Course

Chemistry 101: Foundations of Matter and Chemical Principles

10 units45 lessons

Topics

ChemistryPhysical ScienceLaboratory ScienceMathematics (algebra-based problem solving)Scientific Inquiry/Engineering Practices

About this course

Establishes core understanding of matter and chemical change through NGSS HS-PS–aligned ideas and practices. Emphasizes safe laboratory technique, measurement with significant figures and dimensional analysis, and evidence-based reasoning. Covers properties and classification of matter; atomic structure, isotopes, and electron configuration; periodic organization and trends; ionic, covalent, and metallic bonding plus intermolecular forces; and nomenclature and formula writing. Develops stoichiometry (mole concept, molar mass, balanced equations, percent yield), reaction types and prediction, states of matter, gas laws, and kinetic molecular theory, thermochemistry and calorimetry, solutions and molarity, introductory acids–bases, kinetics and equilibrium, and a survey of nuclear chemistry.