Placeholder text, please change
Placeholder text, please change
Placeholder text, please change
Placeholder text, please change
Placeholder text, please change
Placeholder text, please change
Placeholder text, please change
Placeholder text, please change
Placeholder text, please change
Placeholder text, please change
Placeholder text, please change
Placeholder text, please change
Placeholder text, please change
Placeholder text, please change
Placeholder text, please change
Placeholder text, please change
Placeholder text, please change
Placeholder text, please change
Placeholder text, please change
Placeholder text, please change
Placeholder text, please change

8th Grade Science Assignments

Instructors
Term
2016-2017
Department
8th Grade
Description

This course encompasses all aspects of physical science for middle school. The course emphasizes the problem-solving methods of science, and provides opportunities for students to practice using these methods in a variety of laboratory experiences, activities, projects, and demonstrations. Topics of study covered in this course include:

  • Speed, velocity, force and Newton's laws of motion
  • Atomic properties of periods and groups in the periodic table
  • Molecules, compounds, phase changes and states of matter
  • Characteristics of objects in the solar system
  • Chemical composition of living organisms
  • Mathematical formulas for calculating experiment variables
  • Strategies for designing experiments and analyzing data

Our physical science chapters will be complement with a series of short video lessons that make it easy to process each topic's main ideas and terminology. There are also corresponding transcripts with links to supplementary text lessons as well as multiple-choice quizzes students can use to determine what topics, if any, will require extra study.


Assignment Calendar

Upcoming Assignments RSS Feed

No upcoming assignments.

Past Assignments

Due:

Assignment

Due:

Assignment

Due:

Assignment

Read section summary on the first page. Then complete the assignment. 

Due:

Assignment

Due:

Assignment

As you go through the presentation, take notes. Use the Notes Taking Rubric. 

Due:

Assignment

Due:

Assignment

Due:

Assignment

Due:

Assignment

Due:

Assignment

Chapter 9, section 1: What is energy?
Read pages 156-162. Take notes (follow the Notes-Taking Rubric). Answer questions 1-15. 

Due:

Assignment

Select one of the following plays for your Space Science Play project (Your team may also decide to create their own play):
 
 
You will have class time to work with your team members until the due date. 

Due:

Assignment

The Structure of the Solar System Practice: Pages 11-14

Due:

Assignment

The Structure of the Solar System Practice: Pages 7-10

Due:

Assignment

Due:

Assignment

Choose 5 questions from the list you want to write about. Record all of your answers in your science notebook. You should have at least 2 pages. 
 
  1. Has technology made the world smaller or bigger?
  2. Does the internet need stricter controls and censorship?
  3. What will technology do to the way we live in twenty-five years?
  4. Can genetically altered food sources be used to solve the world’s hunger problem?
  5. What defines death?
  6. Is using animal matter in human transplants ethical?
  7. Should people with health hazards such as smoking or obesity pay higher health care costs?
  8. Should human cloning be allowed?
  9. What role does religion play in the use of reproductive technologies?
  10. Is stem cell research a good or bad idea?
  11. What has social media and texting done to how we communicate?
  12. Has texting made this generation rude?
  13. How does memory work?
  14. Why are diseases, once believed to be eradicated, making a return?
  15. Why are diseases, once believed to be eradicated, making a return?How important are space exploration and research?How important are space exploration and research?
  16. Why are diseases, once believed to be eradicated, making a return?How important are space exploration and research?What do we really know about our universe?
  17. Why are diseases, once believed to be eradicated, making a return?How important are space exploration and research?How smart should our computers get?
  18. What effect will robotics have on us in twenty years?
 

Due:

Assignment

 Density Practice Problems
 
1) A block of aluminum occupies a volume of 15.0 mL and weighs 40.5 g. What is its density?
 
2) Mercury metal is poured into a graduated cylinder that holds exactly 22.5 mL. The mercury used to fill the cylinder weighs 306.0 g. From this information, calculate the density of mercury.
 
3) What is the weight of the ethyl alcohol that exactly fills a 200.0 mL container? The density of ethyl alcohol is 0.789 g/mL.
 
4) A rectangular block of copper metal weighs 1896 g. The dimensions of the block are 8.4 cm by 5.5 cm by 4.6 cm. From this data, what is the density of copper?
 
5) A flask that weighs 345.8 g is filled with 225 mL of carbon tetrachloride. The weight of the flask and carbon tetrachloride is found to be 703.55 g. From this information, calculate the density of carbon tetrachloride.
 
6) Calculate the density of sulfuric acid if 35.4 mL of the acid weighs 65.14 g.
 
7) Find the mass of 250.0 mL of benzene. The density of benzene is 0.8765 g/mL.
 
8) A block of lead has dimensions of 4.50 cm by 5.20 cm by 6.00 cm. The block weighs 1587 g. From this information, calculate the density of lead.
 
9) 28.5 g of iron shot is added to a graduated cylinder containing 45.50 mL of water. The water level rises to the 49.10 mL mark, from this information, calculate the density of iron.
 
10) What volume of silver metal will weigh exactly 2500.0 g. The density of silver is 10.5 g/cm3.
 
 
 
 
 
More Practice
 
1. A metal ball has a mass of 2kg and a volume of 6 m3 . What is its density?
 
2. Water has a density of 1 g/ml. What is the mass of the water if it fills a 10 ml container?
 
3. A certain gas expands to fill a 3 L container. Its mass is measured to be 0.6 kg. What is its density?
 
4. A solid is 5 cm tall, 3 cm wide and 2 cm thick. It has a mass of 129 g. What is its density?
 
5. What is the volume of a marble that has a mass of 3 g and d density of 2.7 g/ml?
 
6. A graduated cylinder is filled to an initial volume of 12.7 ml. A rock is dropped into the graduated cylinder. The final volume of the graduated cylinder is 18.2 ml. What is the rock’s volume in both ml and cm3 ? What method was used to determine this?

Due:

Assignment

1. Video: Predict Whether an Object will Float or Sink: Understanding Density (check your email).
 
2. Make-up Lab (instructions will be provided in class)
 

Due:

Assignment

1. Check answers for Density Calculations
2. Video: What is Buoyancy? - Explanation and Equation (check your school email).

Due:

Assignment

1. Video: How to Calculate the Density of Solids or Liquids (check your email)

Due:

Assignment

1. Density & Buoyancy Lecture (In Class).
2. Video: What is Density?- Explanation and Examples (Check your school email) 

Due:

Assignment

Complete the following exercises (record all answer in your science notebook):
 
1. Key Concept Builder: Pages 12-13
2. Enrichment: Page 14 
3. Challenge: Page 21

Due:

Assignment

Complete the following practices (record all answers in your science notebook):
Key Concept Builder: Pages 10-11

Due:

Assignment

Complete the following practices (record all answers in your science notebook):
1. Content Vocabulary: Page 3
2. Content Practice A and B: Pages 7-8

Due:

Assignment

Read the following reading essential and answer questions 1-12. Record your answers in your science notebook.
 

Due:

Assignment

Speed & Velocity Calculations
Answer the following questions. Record your answer in your science notebook and show all of your work. 
 

1. ______ is a unit of speed:
a. m/s
b. s
c. kg
d. hr

2. The speed at any instant of time is known as
a. average speed
b. velocity
c. given speed
d. instantaneous speed

3. If a total distance of 750 m is covered in a time interval of 25 s,the average speed is ______?
a. 3, 974 mph
b. 3 mph
c. 30 mph
d. 30 m/s

4. ______________ describes how fast something is going, whereas, __________ describes how fast something is going and in a certain direction.
a. speed, velocity
b. rate, speed
c. rate, velocity
d. speed, acceleration

5. Which of the following is a measure of velocity?
a. 30 s
b. 30 South
c. 30 m/s
d. 30 m/s, South

6. If a person walked at 2 m/s for 12 s he/she would travel a distance of ________.
a. 24 m
b. 6 m
c. 4 m
d. none of the answers

7. How long would it take to travel 50 km traveling at a speed of 10 km/hr?
a. 3 hours
b. 1 hour
c. 5 hours
d. 50 hours

8. The ______ of a distance versus time graph is speed.
a. slope
b. y-intercept
c. origin
d. none of the answers

9. The SI unit for speed is the ________.
a. in./hour
b. m/s
c. cm/min.
d. none of the answers

10. How far would you travel moving at 12 m/s for 3.00 minutes?
a. 36.0 m
b. 2160 m
c. 40.0 m
d. 36.0 miles

Due:

Assignment

You are going to review Motion & Forces for the next two week. I have assigned you the Motion & Forces chapter on Saturday (January 28, 2017). Watch the following videos and take the quiz at the end of each video (check your school email for the videos). 
 
Video Title: What is Position in Physics?-Definition & Examples
Video Title: Speed and Velocity: Concepts and Formulas 
 
 
 

Due:

Assignment

Start working on this project. Choose an element you want to build and make a blue print. Use an online periodic table to help you choose your element. 
 

Due:

Assignment

Due:

Assignment

1 Read the following reading essential and answer the questions. Record your answers in your science notebook.
 
 
 
2. Video: Galaxy Formation: Spiral, Elliptical & Irregular Galaxies (if the link did not work, then check your email for the video, be sure to take the quiz at the end of the video lecture). 
 

Due:

Assignment

Science on the News: Watch the following YouTube video about a new discovery in science. Hydrogen has been transformed into metal for the first time. 
 

Due:

Assignment

I have assigned the Periodic Chapter to you. Watch the following videos and take the quiz at the end of each video (check your email for the videos). 
 
Videos:

1. Transition Metals vs. Main Group Elements: Properties and Differences

2. Classifying Substances by Their Physical Properties

Due:

Assignment

I have assigned the Periodic Chapter to you. Watch the following video and take the quiz at the end of the video (check your email for the videos). 
 
Videos:

The Diagonal Relationship, Metallic Character, and Boiling Point

Due:

Assignment

I have assigned the Periodic Chapter to you. Watch the following videos and take the quiz at the end of each video (check your email for the videos). 
 
Videos:

1. Ionization Energy: Trends Among Groups and Periods of the Periodic Table

2. Electronegativity: Trends Among Groups and Periods of the Periodic Table

Due:

Assignment

 
 
I have assigned the Periodic Chapter to you. Watch the following videos and take the quiz at the end of each video (check your email for the videos). 
 
Videos:

1. Valence Electrons and Energy Levels of Atoms of Elements

2. Atomic and Ionic Radii: Trends Among Groups and Periods of the Periodic Table

Due:

Assignment

1. Types of Chemical Reactions: Pages 37-39
2. Acidic, Basic & Neutral Solutions: Determining pH Video/Quiz (Check your school email). 

Due:

Assignment

1. Types of Chemical Reactions: Pages 32-33
2. Phase Change: Evaporation, Condensation, Freezing, Melting, Sublimation & Deposition Video/Quiz (Check your school email).

Due:

Assignment

1. Types of Chemical Reactions: Pages 27-28
2. How Chemical Reactions Form New Products Video/Quiz (Check your school email).

Due:

Assignment

1. Reading Essential: Chemical Reactions & Equations 
2. Chemical Reactions and Balancing Chemical Equations Video/Quiz (Check your school email). 

Due:

Assignment

Chemical Reaction Lab
Introduction

The chemical formula for hydrogen peroxide is H2O2Hydrogen peroxide is not a very stable compound, so, it is always decomposing to water and oxygen, but under normal conditions, the decomposition goes very slowly.  In this chemical reaction, yeast catalyzes the decomposition, making the reaction go much more quickly.  If you add a little dishwashing detergent, you get foam!  If you add food coloring, you get colored foam!

Materials
  • An empty 20 oz soda bottle (or any tall skinny clear container)
  • Hydrogen peroxide (you can get 3% at the grocery store, or 8% at a beauty supply store)
  • Active yeast
  • Warm water
  • Liquid dish soap
  • Food coloring - optional - but it does make a nice color!
 Procedures
  1. Mix ~4 oz of hydrogen peroxide with ~2oz of liquid dish soap and a few drops of food coloring.   Add this mixture to the soda bottle and place it in the sink.
  2. In a separate container, mix one packet of active yeast with warm water, still and let sit for ~ 5 minutes.
  3. When you are ready, pour the yeast mixture into the soda bottle (a funnel might be helpful) and watch the reaction!
 
Observation (record your answer in your science notebook)
  • How much foam is produced, and how quickly?
  • Does it matter if you use lukewarm water to activate the yeast or cold water?
  • What happens if you add more or less soap? 
  • What happens if you don't add any soap?
 
Interesting Fact:
What happens when you pour hydrogen peroxide onto a cut? It bubbles! That's because there is something in your bodily fluids that catalyzes the decomposition. A catalyst is a substance that speeds up a reaction, without being consumed itself.
 

Due:

Assignment

Understanding Chemical Reaction: Pages 18-19
Record your answers in your science notebook. 

Due:

Assignment

Understanding Chemical Reaction: Pages 14-17
--Record your answers in your science notebook

Due:

Assignment

--Record your answers in your science notebook. 

Due:

Assignment

Text Book: Chapter Review pages 76-77

Due:

Assignment

Solid, Liquid, Gas: Pages 17-19

Due:

Assignment

Solid, Liquid, Gas: Pages 13-16

Due:

Assignment

Text Book: Read pages 60-67

Due:

Assignment

Video: States of Matter and Chemical Versus Physical Changes to Matter and the Quiz (Check your email).

Due:

Assignment

Changes in State: Pages 30-34

Due:

Assignment

Video: States of Matter: Solids, Liquids, Gases, & Plasma and the Quiz (Check your email)

Due:

Assignment

Reading Essential: Changes in State

Due:

Assignment

Video: Matter: Physical and Chemical Properties and the Quiz (Check your email)

Due:

Assignment

Read the "Reading Essentials" and answer the questions in your science notebook.
 

Due:

Assignment

Virtual Simple Machine Lab
 
Answer all questions in your science notebook.
 

Part 1-Videos

Directions- Watch the videos on the following topics, in the order that I have them listed, and answer a couple questions about each video.

URL Link- http://www.neok12.com/Simple-Machines.htm

Video Titles

What is Work

  •  Is the weight lifter doing the same amount of work when he lifts the 1200N barbell 1m as when he lifts the same barbell 2m? ________    Explain.
  • What is work in physics?
  • What is a joule?

Mechanical Advantage and Friction

  • How do machines make work easier?
  • How do you find mechanical advantage of a lever?
  • What causes the mechanical advantage of the inclined plane to be less than that of the lever?

 

Inclined Plane

  • Explain how an inclined plane does work?
  • How do you find the mechanical advantage of an inclined plane?

 

Lever

  • Explain how a lever does work?
  • What are the three types of levers?  Give examples of each?

 

Screw and Wheel

  • Explain how a screw does work?
  • Explain how a wheel & axel does work?
  • How do you find the mechanical advantage of a screw and wheel & axel?
    1. Screw-
    2. Wheel and Axel-

Pulley

  • Explain how a pulley does work?
  • What are the three type of pulleys?
  • How does each type of pulley make work easier?

 

Part 2-Simple Machine Games

URL- http://www.msichicago.org/fileadmin/Activities/Games/simple_machines/ 

Directions- Now try out some of the simple machines? Play the game and try two different choices for each machine and write your qualitative observations in the space below. Focus your answers on how much force is needed to do work for each of your choices. Write your choice of machine in the blank space provided.

Inclined Plane

First Inclined Plane________________-

Second Inclined Plane______________-

 Lever

First Lever (Fulcrum Placement)______________-

Second Lever(Fulcrum Placement) ______________-

Wheel and Axle

First Wheel and Axel______________-

Second Wheel and Axel______________-

Pulley

First Pulley______________

Second Pulley______________

 Part 3-Rube Goldberg Machine

http://pbskids.org/zoom/games/goldburgertogo/

Directions- Describe how this Rube Goldberg Machine works?

  • What simple machines do you see in this Rube Goldberg Machine? List 4 specific examples and what kind they are.  Example – Scissors  are a wedge.
  • How does this Rube Goldberg Machine Work?

Part 4- Simple Machine Games

Directions- Play the games and record your scores.

 URL- http://mint.ua.edu/games/simple-machines/

  • What is your total score the first time?________________________
  • What is your total score the second time?______________________
  • What did you struggle with?

URL- http://www.quia.com/cm/42409.html?AP_rand=1249946342 

  • What is your total score the first time?______________________
  • What is your total score the second time?____________________

 

 

 

 

Due:

Assignment

Your Newton's Laws of Motion Project is due Wednesday, October 12, 2016. Use the PDF file below for guidelines. 

Due:

Assignment

Due:

Assignment

Roller Coaster Project Supplies
  • pool noodles (2-3 per student)
  • packaging tape 

Due:

Assignment

Watch the lesson videos and take the quizzes at the end of each lesson.