Percent Increase and Decrease Quiz
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PRE LAB STOICHIOMETRY WORKOUT - Differentiated Practice and Mastery Quiz
🧪 Pre-Lab Stoichiometry Workout | Differentiated Practice & Mastery QuizThis scaffolded stoichiometry workout is designed to build confidence and competence before students enter the lab. Designed for students confidence to increase over a week of lessons, problems progress intentionally from foundational skills to challenging real-world applications, allowing students to develop fluency step-by-step without relying on a textbook. Students begin with molar mass calculations, move through mol
9th - 12th
Chemistry, General Science
APES Unit 6 Lab – Global Energy Transitions & Electricity Generation, Graphing
🧰 Countries do not move away from coal at the same pace or for the same reasons. In this data-driven AP Environmental Science Unit 6 lab, students analyze modeled, real-world electricity generation data to examine how national energy systems change over time as countries transition toward lower-carbon electricity sources. This no-prep investigation builds graphing, quantitative reasoning, and CER skills as students compare energy transition pathways across multiple countries and explain why
9th - 12th, Higher Education
Environment
NGSS
HS-ESS3-1
, HS-ESS3-4
Psychology Lab Weber's Law and Hearing: How Much Louder to Notice a Difference?
Students apply Weber's Law (ΔI = k × I, where k = 0.1 for hearing) to calculate the just noticeable difference (JND) in loudness for ten stimulus intensities ranging from 20 to 110 dB. After completing the data table, students plot intensity on the x-axis and JND on the y-axis, identify the linear relationship, and explain in everyday language how the JND grows proportionally with intensity. A real-world application problem asks students to calculate the minimum loudness increase a concert-goer
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
Psychology Lab Weber's Law and Smell: How Much Stronger Before You Notice?
Students apply Weber's Law (ΔI = k × I, where k = 0.05 for smell) to calculate JNDs for ten odor concentrations ranging from 20 to 500 AU (arbitrary units). After completing the data table and plotting the graph, students describe the linear intensity-JND relationship and explain how the olfactory system's sensitivity relates proportionally to baseline concentration. A real-world problem asks students to calculate the minimum odor increase a fragrance evaluator named Parfumia would detect at 120
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
Psychology Lab Weber's Law and Taste: How Much Saltier Before You Notice?
Students apply Weber's Law (ΔI = k × I, where k = 0.20 for saltiness) to calculate JNDs for ten salt concentrations ranging from 1 to 40 g/L. The relatively high k value for taste (compared to vision and kinesthesis) gives students data that demonstrates taste's lower sensitivity to proportional changes. After graphing, students describe the linear relationship and explain what the larger k value implies about gustatory discrimination. A real-world problem asks students to calculate the minimum
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
Psychology Lab Weber's Law and Temperature: How Hot Before You Feel the Diff.
Students apply Weber's Law (ΔI = k × I, where k = 0.07 for temperature) to calculate JNDs for ten temperatures ranging from 10 to 55°C. The lab introduces students to thermal sensation as a measurable, Weber's Law-governed sensory modality. After graphing and identifying the linear relationship, students explain how the JND for temperature grows with baseline temperature. A real-world problem asks students to calculate the minimum temperature increase a hot tub enthusiast named Chilldaddy would
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
Psychology Lab Weber's Law and Touch: How Much Pressure Before You Feel More?
Students apply Weber's Law (ΔI = k × I, where k = 0.14 for touch/pressure) to calculate JNDs for ten pressure intensities ranging from 50 to 1500 g. The wide range of values — from light touch to heavy pressure — gives students data that clearly illustrates the proportional scaling of JND across a broad sensory range. After graphing, students describe the linear relationship. A real-world problem asks students to calculate the minimum pressure increase a massage therapist named Squishy would nee
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
Psychology Lab Weber's Law and Vision: How Much Brighter Before Your Eye Notices
Students apply Weber's Law (ΔI = k × I, where k = 0.02 for brightness) to calculate JNDs for ten light intensities ranging from 100 to 3000 candelas (cd). The very low k value for vision — the lowest in the collection alongside kinesthesis — demonstrates that the visual system is among the most sensitive to proportional changes, requiring only a 2% change for detection. After graphing, students note the linear relationship and discuss the implications of the small k value. A real-world problem a
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
Psychology Lab Weber's Law and Kinesthesis: How Much Heavier Before You Feel It?
Students apply Weber's Law (ΔI = k × I, where k = 0.02 for kinesthesis) to calculate JNDs for ten lifted weights ranging from 100 to 5000 g. Sharing the same k value as vision (0.02), this lab allows for cross-modal comparison of sensitivity and demonstrates that the kinesthetic system — despite sensing a very different type of stimulus — matches visual sensitivity in proportional discrimination. After graphing, students describe the linear relationship. A real-world problem asks students to cal
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
Online Simulation: Gel Electrophoresis
This is a student guide and worksheet to go along with the wonderful online simulation of gel electrophoresis provided by labxchange.org. There are 6 parts to this simulation. Part 1: Context -- Students get an introduction to gel electrophoresis (6 Questions) Part 2: Materials -- Students review lab equipment (6 Questions) Part 3: Predictions -- Students make predictions about the lab simulation (2 Questions) Part 4: Protocol -- Students conduct the detailed online simulation (3 Questions)
9th - 12th, Adult Education, Higher Education
Biology, General Science, Science
Assessing Lab Safety | Chemistry | Middle School High School
Assessing Lab Safety | Editable Lab Safety Assessment for Middle & High School Science This flexible and editable lab safety assessment is the perfect way to evaluate your students' understanding of science classroom rules, safety equipment, and proper lab behavior. Whether used as a pre-assessment, exit ticket, or formal lab safety quiz, this tool helps ensure your students are prepared to work safely and responsibly in the lab. What’s Included: ✅ Lab Safety Assessment (PDF format)
9th - 12th
Chemistry, General Science, Physical Science
M&Mium Isotope Lab: A Sweet Introduction to Mass Spectrometry
oking for an engaging, hands-on way to teach isotopes, percent abundance, and average atomic mass in AP Chemistry? This M&Mium Isotope & Mass Spectrometry Lab transforms abstract concepts into a student-driven modeling experience where learners act as scientists analyzing a fictional element using real data. Students use M&M candies to represent isotopes, collect and analyze quantitative data, and apply their results to build mass spectrometry understanding—all while developing essential AP Chem
8th - 12th
Chemistry, Physical Science
Psychology Lab Investigative Career Interests: Do Juniors or Seniors Score Highe
Students complete the IIP RIASEC Markers Holland Code assessment at openpsychometrics.org and record only their Investigative (I) score, which reflects interest in science, research, and analytical thinking. Students pool Investigative scores with classmates, separating results by grade level. Junior and senior scores are entered into an independent samples t-test to evaluate whether career interest differences are statistically significant. Students analyze group averages, interpret statistical
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
Fraction ⇆ Decimal ⇆ Percent Conversions | Math Lab + Answer Key
Looking for a no-prep, pencil-only activity that helps students solidify their understanding of fractions, decimals, and percents—and actually enjoy it? This engaging Math Lab is packed with 6 creative, puzzle-based tasks that explore conversions through matching, visuals, real-world scenarios, logic puzzles, and reasoning challenges. Perfect for review, practice, sub plans, or centers! What’s Included:✅ Visual & numeric matching task ✅ Fraction–Decimal–Percent conversion puzzle ✅ True/False ma
6th - 8th
Fractions, Other (Math)
Psychology Lab Juniors vs. Seniors: Who Is More Hypersensitive?
Students complete the Hypersensitive Narcissism Scale (HSNS) measuring covert narcissism — characterized by hypersensitivity to criticism, self-absorption, and fragile self-esteem — then collect scores from junior and senior classmates to run an independent samples t-test. The lab is one of the more conceptually sophisticated in the collection, asking students to consider whether hypersensitive narcissism might change across high school years. Juniors navigating high-stakes performance pressure
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
Psychology Lab Autism Spectrum Traits in Juniors vs. Seniors: A t-Test Lab
Students complete the Autism Spectrum Quotient (AQ), a widely used self-report measure of autism-spectrum-associated traits such as social skill differences, attention switching, and attention to detail. Students record their scores and contribute to a class dataset organized by grade level. Junior and senior scores are entered into an independent samples t-test to determine whether differences in autism spectrum trait expression are statistically significant across grade levels. Students interp
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
Pi-Day Catapult — Optimize Angle & Tension (Predict vs. Measure) | MS–HS NGSS
Description (NGSS included) Celebrate Pi-Day with a data-driven projectile challenge! Students tune angle and tension on a simple launcher, then predict vs. measure range and compute percent error. Teams graph Range vs. Angle (and optional Range vs. Pullback) and explain results with CER. 🧠📈 🔬 Investigate: hold one variable constant to fairly test the other. 🧮 Model: use a calibration shot or R ≈ (v²·sin(2θ))/g to predict. 📊 Analyze: compare predicted vs. measured; percent error
3rd - 12th
Engineering, General Science, Physics
What's in Your Soda? - A Distillation Lab (Crisis Chemistry PBL)
Kick off your AP Chemistry course with an engaging, real-world investigation that gets students thinking like chemists on day one! In this hands-on lab, students use a simple distillation setup to separate a common mixture—soda—and determine the percent of water in their sample. Through observation, analysis, and calculation, students connect core Unit 1 concepts to a meaningful scenario involving water purification after a natural disaster. What’s IncludedStudent lab handout (print-ready)Clear
10th - 12th
Chemistry, Physical Science
Psychology Lab Tired and Grumpy: Does Sleep Quality Predict Negative Affect?
Tired and Grumpy: Does Sleep Quality Predict Negative Affect? Students complete the Groningen Sleep Quality Scale (GSQS) and the PANAS Negative Affect subscale, then pool data to calculate a Pearson r. The lab connects sleep neuroscience — specifically amygdala reactivity to sleep deprivation — to emotional experience, providing a biological mechanism for the predicted correlation. Students analyze the bidirectional cycle in which poor sleep increases negative emotion and negative emotion disr
8th - 12th, Adult Education, Higher Education
Psychology, Statistics
Psychology Lab Juniors vs. Seniors: Do Femininity Traits Change? A BSRI Lab
Students complete the Bem Sex Role Inventory (BSRI) and record only their Femininity subscale score, then collect scores from junior and senior classmates to run an independent samples t-test. The Femininity subscale measures self-reported traits historically associated with femininity — warmth, nurturance, sensitivity, and compassion — regardless of the students gender. The lab examines whether these interpersonally oriented traits change meaningfully between junior and senior year, and invites
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
Psychology Lab Want Friends, Fear People: Unmet Belonging Needs and Social Anx.
Students complete the Belonging/Love subscale of a Maslow-based needs assessment and the Liebowitz Social Anxiety Scale (LSAS), then pool paired scores from 9 classmates to calculate a Pearson r. The lab examines a clinically important paradox: people who most want social connection may simultaneously be most afraid of it. Students explain the psychological mechanism — unmet belonging needs can intensify the stakes of social evaluation, increasing fear of rejection and feeding social anxiety — a
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
Psychology Lab Is It Anxiety or Just About Health? Comparing Two Constructs
Is It Anxiety or Just About Health? Comparing Two Anxiety Constructs Students complete the Short Health Anxiety Inventory (HAI-18) and the GAD-7 General Anxiety scale, then pool data to calculate a Pearson r. The lab examines whether health anxiety is a specific form of general anxiety or a distinct clinical construct, and explores how heightened attention to bodily sensations differs from generalized worry. Discussion connects the lab to post-pandemic increases in health anxiety and challenge
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
Psychology Lab Juniors vs. Seniors: Who Feels More Connected to Nature?
Students complete the Connectedness to Nature Scale (CNS), which measures the degree to which a person feels part of the natural world, then collect scores from junior and senior classmates to run an independent samples t-test. The lab explores whether environmental identity and nature connectedness — shown in research to buffer stress and support well-being — differs between the two grade levels. Students consider whether time spent outdoors, exposure to nature during adolescence, or the increa
8th - 12th, Adult Education, Higher Education
Health, Psychology, Statistics
AP Environmental Science | LD₅₀ Dice Lab: Modeling Lethal Dose and Toxicity
🎲 LD₅₀ Dice Lab: Modeling Lethal Dose and Toxicity Bring data analysis and toxicology to life with this engaging LD₅₀ Dice Lab! In this hands-on simulation, students model how scientists determine the lethal dose (LD₅₀) of a substance, the dose that kills 50% of a test population. Using dice to represent random variation in organism sensitivity, students explore how chance and biological diversity affect the outcomes of toxicity studies. 🧪 OverviewWhen scientists study toxins, they expose
9th - 12th
Biology, Earth Sciences, Environment
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