Jump to main content

Eighth Grade Projects, Lessons, Activities (1,100 results)

Search
Refine Results
Filter by
Sort by
Measuring Sugar Content of a Liquid with a Laser Pointer
Science Fair Project Idea
Scientific Method
Did you know that you can figure out how much sugar is in a liquid without ever tasting it? In this science fair project, you will learn how to measure the concentration of sugar dissolved in a liquid by using a laser pointer, a hollow prism, and some physics. You will discover how refraction, or the bending of light, is the key to measuring the sugar content of a liquid with a laser pointer. Read more
Measuring the Surface Tension of Water
Science Fair Project Idea
Scientific Method
Did you know that when you dip your finger in water and pull it out, the water is actually pulling back on you? Here's a way you can measure how much. Read more
Measuring Your Taste Threshold
Science Fair Project Idea
Scientific Method
Have you ever been to a buffet and found yourself surrounded by a wide variety of taste sensations? People are generally able to discern five basic tastes: sweet, umami (also known as savory), salty, sour, and bitter. How sensitive is a person's tongue for these basic tastes? Is it easier to detect some flavors at low concentrations compared to others? In this human biology science project, you will find out by exploring your taste thresholds for sweetness, saltiness, and sourness. Get ready to… Read more
Modeling Gravity
Lesson Plan Grade: 6th-8th
1
2
3
4
5
6 reviews
Why can we feel gravity pull us down towards the Earth, but not sideways towards other big objects like buildings? Why do the planets in our solar system orbit the sun instead of flying off into space? In this lesson plan your students will develop a model for gravity and use it to explore answers to these questions. Read more
NGSS Performance Expectations:
  • MS-PS2-4. Construct and present arguments using evidence to support the claim that gravitational interactions are attractive and depend on the masses of interacting objects.
  • MS-ESS1-2. Develop and use a model to describe the role of gravity in the motions within galaxies and the solar system.
Ping Pong Pickup Challenge for Grades 6-8
Lesson Plan Grade: 6th-8th
1
2
3
4
5
19 reviews
In this fun engineering lesson plan, your students will build devices from paper, tape, string, and paper clips to pick up and retrieve a ping pong ball. The challenge is to pick up the ball from as far away as possible! Elementary school and high school versions of this lesson plan are also available. The 2023 competition is over, but you can see what students built and learn about the winners on the 2023 Engineering Challenge summary page. Read more
NGSS Performance Expectations:
  • MS-ETS1-2. Evaluate competing design solutions using a systematic process to determine how well they meet the criteria and constraints of the problem.
Predicting Future Water Quality with Machine Learning
Science Fair Project Idea
Scientific Method
Understanding the water quality of our rivers, streams, and lakes is critical for maintaining healthy ecosystems and sources of drinking water. Dissolved oxygen is one key water quality measurement that impacts aquatic life. But how can we predict how water quality might change in the future so we can intervene to keep our water healthy? With machine learning! In this project, you will gather water quality data for a location of your choice and use a random forest model to predict future… Read more
Proving Charles' Law: Volume vs. Temperature of a Gas at Constant Pressure
Science Fair Project Idea
Scientific Method
This is a modern version of a classic experiment by Jacques Charles on the volume of a gas at different temperatures. Charles discovered the relationship between volume and temperature of gases that now bears his name. This project shows you a simple method for re-creating this famous experiment. Read more
Race Your Marbles to Discover a Liquid's Viscosity
Science Fair Project Idea
Scientific Method
How do you like your mashed potatoes? Thin and whipped smooth? Or thick and mashed into chunks? Your mouth checks out not just the taste of your food, but its viscosity, or how it flows on your tongue, every time you take a bite! In this science fair project, you'll learn what viscosity is, and how to measure it in common liquids around your home. Read more
Rubber Band Elasticity and Temperature
Science Fair Project Idea
Scientific Method
Many materials expand when heated and contract when cooled. What do you think will happen to the elasticity (stretchiness) of a rubber band when it is heated or cooled to various temperatures? Read more
Simple Harmonic Motion in a Spring-Mass System
Science Fair Project Idea
Scientific Method
Many things in nature are periodic: the seasons of the year, the phases of the moon, the vibration of a violin string, and the beating of the human heart. In each of these cases, the events occur in repeated cycles, or periods. In this project, you will investigate the periodic motion of a spring, using a mini Slinky®. You can also measure the motion of your spring using a smartphone equipped with a sensor app. Basic physics will then allow you to determine the Hooke's Law spring constant.… Read more
< 1 ... 33 34 35 36 37 ... 110 >

Explore Our Science Videos

Quick Links X
Top
Free science fair projects.