Chemical Sparks Quiz Wisconsin HSED Prep • Physical Science
Chemical Sparks Quiz
MODULE 1: CHEMISTRY Printable Exam
Student Name:
Date:
Side-by-Side Glossary
Chemical Change: A reaction that creates a new substance with different properties.
Reactants: Starting ingredients in a reaction (found on the left side).
Limiting Reactant: The ingredient that runs out first, stopping the reaction.
Products: New substances made by the reaction (found on the right side).
SEC A Interpreting Chemical vs. Physical Changes
1. A student monitors a test tube reaction. They observe bubbling, heat emission, and a new cloudy white precipitate forming at the bottom.
Step 1: Identify Evidence
Check all signs of a chemical change observed here:
Bubbles (gas release)
Precipitate (solid formed)
Temperature change
Step 2: Draw Conclusion
Based on this evidence, what type of change occurred?
Physical Change
Chemical Change
SEC B Interpreting Models & Predicting Outcomes
Scientific Model: Formation of Water
Reactants
\(2H_2 + O_2\)
Products
\(2H_2O\)
Atom Legend:
Hydrogen (H) • Mass: 1g
Oxygen (O) • Mass: 16g
Part A: Model Atom Counting 1.5 pts
Count the total number of individual atoms on each side of the model:
Reactants: ______ H atoms ______ O atoms
Products: ______ H atoms ______ O atoms
Part B: Mass Conservation Calculations 1.5 pts
Calculate reactant and product masses to verify conservation of mass:
Reactant Total Mass:
4(1g) + 2(16g) = _________ g
Product Total Mass:
4(1g) + 2(16g) = _________ g
Part C: Predicting Leftover Atoms (Limiting Reactant) 2 pts
Suppose you combine 4 Hydrogen molecules (8 H atoms) and 1 Oxygen molecule (2 O atoms) .
1. Predict Water Molecules Formed:
How many \(H_2O\) can be created before Oxygen runs out?
2 \(H_2O\) molecules
4 \(H_2O\) molecules
2. Predict Leftovers:
What atoms will remain completely unreacted?
4 Hydrogen (H) atoms
2 Oxygen (O) atoms
Wisconsin HSED Prep Module 1: Chemistry Quiz Page 1 of 2
Wisconsin HSED Prep • Physical Science
Chemical Sparks Quiz
MODULE 1: CHEMISTRY Printable Exam
SEC C Visual Guide: Balancing Chemical Equations
Visual Step-by-Step Organizer
An equation is balanced when atoms on the left match the atoms on the right. We change coefficients (the numbers in front) to balance them—never change small subscripts.
1. Count Left & Right
2. Find Imbalance
3. Adjust Coefficients
3. Balance the chemical equation representing the synthesis of Ammonia (\(NH_3\)):
____ \(N_2\) + ____ \(H_2\) ____ \(NH_3\)
Step 1: Check Unbalanced State
Nitrogen (N) Reactants: 2 atoms
Nitrogen (N) Products: 1 atom
Hydrogen (H) Reactants: 2 atoms
Hydrogen (H) Products: 3 atoms
Step 2: Balance Nitrogen
Place a coefficient of 2 in front of \(NH_3\). How many total Hydrogen atoms are on the product side now?
3 Hydrogen atoms
6 Hydrogen atoms (2 x 3)
Step 3: Final Balance
To balance 6 Hydrogen atoms on the right, what coefficient must go in front of \(H_2\) on the left? (Hint: \(\text{___} \times 2 = 6\))
2
3
SEC D Interpreting Diagrams & Predicting Reaction Rates
4. Students measured how long a zinc-acid reaction took to release 50 mL of gas at different temperatures:
Test Temperature Time to Finish A 20 °C (Room Temp) 120 seconds B 40 °C (Warm) 60 seconds C 60 °C (Hot) 30 seconds
Step 1: Predict Outcome
If students run Test D at 80 °C , predict the reaction time:
15 seconds (Halved again)
150 seconds (Takes longer)
Step 2: Link Content & Write Conclusion:
"Increasing temperature makes molecules move faster / slower, which causes more / fewer collisions and speeds up the reaction rate."
Based on the table, I conclude that higher temperatures...
Wisconsin HSED Prep Module 1: Chemistry Quiz Page 2 of 2
Chemical Sparks Teacher Guide Wisconsin HSED Prep • Physical Science
Chemical Sparks Teacher Guide
MODULE 1: CHEMISTRY Answer Key
Target Assessment: Chemical Sparks Quiz
Total Points: 12 Points (HSED Aligned)
Key Standards: WI HSED Science Standard 1
Section A Answer Key: Physical vs. Chemical Changes
1. Evidence & Conclusion (2 Points total):
Step 1: Evidence: All three boxes must be checked: Bubbles, Precipitate, and Temperature change.
Step 2: Conclusion: Correct choice is Chemical Change because new substances are formed and cannot be easily reversed.
Section B Answer Key: Interpreting Models & Predicting Outcomes
2. Model Counting, Calculations & Prediction (5 Points total):
Part A: Atom Counting (1.5 Pts): Reactants have 4 H and 2 O atoms. Products have 4 H and 2 O atoms.
Part B: Mass Calculations (1.5 Pts): Both reactant and product side equal 36 g (4x1g + 2x16g). This mathematically proves conservation of mass.
Part C: Predicting Leftover Atoms (2 Pts):
1. Water Molecules: 2 \(H_2O\). (Because we only have 2 Oxygen atoms, which limit the reaction).2. Leftovers: 4 H atoms. (8 H atoms initially minus 4 H used = 4 H atoms left unreacted).
Section C Answer Key: Balancing Chemical Equations
3. Balancing Synthesis of Ammonia (2 Points total):
Balanced Equation: 1 \(N_2\) + 3 \(H_2\) \(\rightarrow\) 2 \(NH_3\).
Step 2: Correct choice is 6 Hydrogen atoms (2 x 3) .
Step 3: Correct choice is 3 . (Multiplying coefficient 3 by subscript 2 gives 6 H atoms on reactants side).
Section D Answer Key: Diagrams & Predicting Reaction Rates
4. Table Interpretation, Prediction & Rubric (3 Points total):
Step 1: Predict Outcome (1 Pt): Correct is 15 seconds . The trend shows that as temperature increases by 20 °C, the reaction time is halved (120s \(\rightarrow\) 60s \(\rightarrow\) 30s \(\rightarrow\) 15s ).
Step 2: Conclusion Frame (1 Pt): "Increasing temperature makes molecules move faster , which causes more collisions..."
Step 3: Short Response (1 Pt): Student must express that as temperature increases, reaction time decreases (reaction rate increases). Credit given for complete sentences stating this relationship.
Motion Master Quiz Wisconsin HSED Prep • Physical Science
Motion Master Quiz
MODULE 2: PHYSICS Printable Exam
Student Name:
Date:
Side-by-Side Glossary
Velocity (v): Speed in a specific direction. Formula: \(v = \frac{d}{t}\).
Net Force (\(F_{\text{net}}\)): Total overall force when all forces are combined (added or subtracted).
Newton's 2nd Law: Force equals mass times acceleration (\(F = m \times a\)).
Friction Force: Force that opposes motion, acting in the opposite direction.
SEC A Calculating Velocity (Speed & Direction)
Formula Triangle
d vt
How to solve for speed/velocity:
Cover v with your finger. You are left with d over t . This tells you to divide: \(\text{Velocity} = \text{Distance} \div \text{Time}\). Always write direction!
1. A delivery truck travels 150 kilometers North along Interstate 43 in exactly 2 hours. What was the truck's velocity?
Step 1: Identify Variables
Distance (d): ________ km
Time (t): ________ hrs
Step 2: Set Up Equation
Divide distance by time:
\(\frac{\text{_____ km}}{\text{_____ hrs}}\)
Step 3: Calculate & Solve
75 km/h North
300 km/h North
SEC B Interpreting Force Diagrams & Net Force
2. A student pushes a storage box on wheels across the gym floor. Study the force diagram below:
Force Diagram
Friction = 5 N
Box
Push = 15 N
Vector Analysis:
Forces in opposite directions (Left vs. Right) subtract from one another. The leftover force is the Net Force , which determines acceleration.
Part A: Net Force
Subtract friction from applied force:
\(15\text{ N} - 5\text{ N} = \text{______ N}\)
Part B: Predict Direction
Which direction will the box accelerate?
East (Right)
West (Left)
Part C: Predict Outcome
If friction is increased to 15 N (equal to the push):
Net Force 0 N (No acceleration)
Box speeds up faster
Wisconsin HSED Prep Module 2: Physics Quiz Page 1 of 2
Wisconsin HSED Prep • Physical Science
Motion Master Quiz
MODULE 2: PHYSICS Printable Exam
Motion Master Teacher Guide Wisconsin HSED Prep • Physical Science
Motion Master Teacher Guide
MODULE 2: PHYSICS Answer Key
Target Assessment: Motion Master Quiz
Total Points: 12 Points (HSED Aligned)
Key Standards: WI HSED Science Standard 2
Section A Answer Key: Calculating Velocity
1. Truck Velocity Calculation (3 Points total):
Step 1: Identify: Distance = 150 km , Time = 2 hours .
Step 2: Set Up: \(\frac{150\text{ km}}{2\text{ hrs}}\).
Step 3: Calculate: Correct Choice is 75 km/h North (must specify the speed magnitude *and* direction to count as velocity).
Section B Answer Key: Interpreting Force Diagrams
2. Vector Analysis & Outcome Predictions (4 Points total):
Part A: Net Force (1.5 Pts): \(15\text{ N (East)} - 5\text{ N (West)} =\) 10 N .
Part B: Predict Direction (1 Pt): Correct Choice is East (Right) because the applied force pointing East is larger than friction pointing West.
Part C: Predict Outcome (1.5 Pts): Correct Choice is Net Force is 0 N (No acceleration). When opposing forces are completely balanced, the net force is zero and the object's velocity will remain constant (no acceleration occurs, as stated in Newton's 1st law).
Section C Answer Key: Interpreting Motion Graphs
3. Graph Interpretation & Predictions (3 Points total):
Part A: Constant Speed (1 Pt): Correct Choice: 5 m/s . Calculated as \(\frac{20\text{ meters}}{4\text{ seconds}}\).
Part B: Flat Line Meaning (1 Pt): Correct Choice: Object is stopped . Time is moving but distance has flatlined, meaning position does not change.
Part C: Predict Next Position (1 Pt): Correct Prediction: 40 meters . The last segment from 6s to 8s increases distance by 10 meters (from 20m to 30m). Continuing this constant speed of 5 m/s, the position at 10 seconds will be \(30\text{ m} + 10\text{ m} =\) 40 m .
Section D Answer Key: Linking Concepts
4. Inertia Open Response Rubric (2 Points total):
2 Points: Student explains that passengers continue moving forward because of inertia . They must point out that when brakes stop the car, the passenger keeps moving forward because their body resists the change in motion.
1 Point: Student simply names "inertia" or "Newton's 1st Law" but fails to link it to the passenger continuing forward motion relative to the braking car.
Adult Educator Pedagogical Tips
