Percent Increase and Decrease Quiz
9+ results
Filters
Grade
Subject
Resource type
Programs & methods
AP Chemistry Unit 8 Worksheet | Acids, Bases, and Buffers | Stimulus Set + Key
Unit 8 is the highest-frequency FRQ topic on the AP exam — it appears every single year. The two skills that separate 4s from 5s: weak acid pH with ICE table, and explaining why equivalence point pH ≠ 7.00.Covers pH calculations with conductivity prediction, weak acid ICE tables with percent dissociation, quadratic pH solutions (no small-x), conjugate base hydrolysis, Henderson-Hasselbalch buffers with strong acid addition, and a complete 4-point weak acid titration. The stimulus set compares ti
9th - 12th, Higher Education
Chemistry
IB DP Environmental Systems & Societies Topic 8.1 Human Demographics
This presentation covers much of topic 8.1 (4 of 6 Understanding points).
U8.1.1 Demographic tools (CBR, CDR, TFR, DT, NIR).
U8.1.2 Uncertainty exists in predicting changes in future global human population growth.
U8.1.3 Human population growth increases stress on all of Earth’s systems.
U8.1.4 Age–gender pyramids and DTM models can be useful in predicting human population growth
It discusses weaknesses with each tool and models.
Contains links to dynamic world population counters and age-gend
11th - 12th
Environment, Geography
Chemistry Quantum Numbers Quiz 3 versions (with typed KEY)
The 6-page Chemistry Electrons Unit Quantum Numbers Quiz is entirely customizable and editable. There are three distinct versions of the quiz, each accompanied by a corresponding answer key. Version C, denoted as a "practice quiz," is specifically crafted for comprehensive review purposes. This quiz is great for testing quantum and is designed to be complete in under 20 minutes. Should the problems not align with your requirements, feel free to add or remove problems, given the file's editable
9th - 12th
Chemistry, Physics, Science
Also included in: Chemistry Yearlong Chemistry Curriculum BUNDLE (Moles Solutions + more!)
AP Environmental Science UNIT 9.1 - Ozone Depletion | Notes + Slides
🌿 AP Environmental Science – UNIT 9 | Topic 9.1: Stratospheric Ozone DepletionThis resource package provides a complete teaching and learning set for APES Topic 9.1, covering the science, causes, impacts, and global response to stratospheric ozone depletion. Key Content Covered:-Core Concept: How human-released ozone-depleting substances (ODS) damage the protective stratospheric ozone layer, increasing harmful UV radiation at Earth’s surface. Foundational Science:Ozone formation and the Chapma
10th - 12th
Earth Sciences, Environment, Informational Text
AP Chemistry Unit 4 Worksheet | Chemical Reactions | Stimulus Set
Net ionic equations and limiting reactant calculations appear on the AP exam every year.Covers redox analysis with oxidation state tracking (permanganate + HCl), half-reaction balancing in acidic solution, stoichiometry with limiting reactants and percent yield (thermite and aspirin), and hydrate analysis. The stimulus set presents a 4-trial PbI₂ precipitation experiment — students write the net ionic equation, calculate theoretical yield and percent yield, and explain why different trials produ
9th - 12th, Higher Education
Chemistry
AP Environmental Science UNIT 5.2 The Green Revolution | Notes + Slides
🌿 AP Environmental Science – UNIT 5 | Topic 5.2: The Green RevolutionThis resource package provides a complete teaching and learning set for APES Topic 5.2, covering the historical context, agricultural methods, and global impacts of the Green Revolution.Key Content Covered:Core Concept: The 20th-century transformation of agriculture through scientific innovation to dramatically increase global food production.Foundational Figures & Development:The role of Norman Borlaug and the spread from M
10th - 12th
Earth Sciences, Environment, Informational Text
AP Chemistry Unit 2 Worksheet | Molecular & Ionic Compound Structure | Stimulus
Lewis structures and VSEPR are the two most-tested subtopics in Unit 2 and the most common source of lost FRQ points.Covers Lewis structures (including expanded octets and formal charge), VSEPR geometry and polarity, MO theory for O₂ species, and hybridization from measured bond angles. The stimulus set presents bond angle data for CH₄, NH₃, H₂O, BF₃, and SF₄ — students explain compression trends and equatorial lone pair preference.This worksheet is part of the AP Chemistry Unit Worksheets serie
9th - 12th, Higher Education
Chemistry
AP Environmental Science UNIT 9.4 - Invasive Species | Notes + Slides
🌿 AP Environmental Science – UNIT 9 | Topic 9.4: Invasive SpeciesThis resource package provides a complete teaching and learning set for APES Topic 9.4, covering the causes, ecological and economic impacts, and management strategies related to invasive species in the context of global change. Key Content Covered:-Core Concept: How non-native species introduced by human activities can spread, outcompete native species, and disrupt ecosystems, leading to significant ecological and economic harm.
10th - 12th
Earth Sciences, Environment, Informational Text
AP Environmental Science UNIT 5.4 - Pest Control Methods | Notes + Slides
🌿 AP Environmental Science – UNIT 5 | Topic 5.4: Pest-Control MethodsThis resource package provides a complete teaching and learning set for APES Topic 5.4, covering the diverse methods of pest control, their environmental and human health impacts, and the principles of sustainable management. Key Content Covered:Core Concept: The need to manage agricultural pests to ensure food security and the trade-offs involved with different control strategies. Types of Pests: Insect pests, weeds, plant d
10th - 12th
Earth Sciences, Environment, Informational Text
Showing 1-9 of 9+ results
TPT is the largest marketplace for PreK-12 resources, powered by a community of educators.
IXL family of brands