Ninth Grade Projects, Lessons, Activities (Page 76)

The Making of a GMO Crop

Lesson Plan Grade: 9th-12th

Students will compare and contrast methods of selective plant breeding, describe the scientific process of creating a genetically modified plant, compare genetically modified soybean seeds to conventional soybean seeds, describe the impact weeds have on plant growth, and understand how a genetically modified seed can help farmers manage weeds. Read more

NGSS Performance Expectations:

HS-LS1-1. Construct an explanation based on evidence for how the structure of DNA determines the structure of proteins, which carry out the essential functions of life through systems of specialized cells.
HS-LS3-1. Ask questions to clarify relationships about the role of DNA and chromosomes in coding the instructions for characteristic traits passed from parents to offspring.

The Milky Way and Beyond: Globular Clusters

Science Fair Project Idea

Scientific Method

Globular clusters, compact groups of about a million stars that move around together in galaxies, are among the oldest objects found in the universe. Since they are found in most galaxies and since they've been around for so long, globular clusters have a lot to tell us about what the universe looks like now and how it got that way. Is our Milky Way Galaxy just like all the other galaxies out there? What are galaxies made of? What can we learn about the universe from looking at galaxies? … Read more

The Physics of Martial Arts

Science Fair Project Idea

Scientific Method

"Ay Yaah!" echoes across the room while a loud "thud" signals a powerful kick striking the kick bag. Sound familiar? If the discipline, precision, and power of martial arts is your bag, try this project out for size. You won't be sparring with any opponent other than a swinging kick bag, but you'll learn a few powerful lessons about the physics of efficient kicking. No black belts required; just bring your best form and work up a little sweat while you use your feet to do fun science. Read more

The Power of Balance

Science Fair Project Idea

Scientific Method

The Falkirk Wheel is a rotating boat lift connecting the Forth and Clyde Canal with the Union Canal near Falkirk in central Scotland. It consists of two diametrically opposed caissons which rotate to lift boats between the two canals through a height of 35 meters. The wheel is always perfectly balanced and, despite its enormous mass, rotates through 180° in less than four minutes, using just 1.5 kilowatt-hours (Wikipedia contributors, 2006). Do background research… Read more

The Science of Spin: A Baseball Pendulum

Science Fair Project Idea

Scientific Method

For this project, you'll use a baseball as a pendulum weight, studying the motion of the ball with and without spin. Wrap a rubber band around the ball, and tie a string to the rubber band. Fasten the string so that the ball hangs down and can swing freely. Mark a regular grid on cardboard, and place it directly beneath the ball to measure the motion. You can also time the oscillations with a stopwatch. Lift the ball along one of the grid axes, and let it go. Observe the motion and record… Read more

The True Cost of a Bike Rack: Aerodynamics and Fuel Economy

Science Fair Project Idea

Scientific Method

Race car drivers need every advantage they can get to give them the competitive edge in a race. In addition to human factors, like driving skill and reaction time, their cars must overcome physical forces, like air resistance, to maintain their high speeds. While this science project will not have you driving around a race track at 200 miles per hour, you will get to test how increased air resistance affects a real car's fuel economy. You will do this by measuring and comparing the gas mileage… Read more

The Turn of the Screw

Science Fair Project Idea

Scientific Method

How much force is required to advance a lag bolt (large wood screw with a hex-shaped head) into a piece of wood? You can measure the force by using a spring scale attached to the handle of ratchet. Pull on the spring scale until the bolt starts to turn, and note the required force from the spring scale. There are many potential experiments you could try. Think about answering the following questions: How does the force change as the bolt advances deeper into the wood? Why? How does the… Read more

Tick Tock, Tick Tock, Does Your Mouse Know the Time on the Clock?

Science Fair Project Idea

Scientific Method

Mice, rats, and other rodents are typically nocturnal animals; that is, their activity level is highest at night. For this science fair project, you will build a device that records your pet's activity by monitoring movement of its exercise wheel to see how it varies during the day and night. You can also experiment with various ways of changing your pet's cycle of activity; for example, by playing with it during the day when it's normally resting. Read more

Tightening the Turns in Speed Skating: Lessons in Centripetal Force & Balance

Science Fair Project Idea

Scientific Method

Enjoy the thrill and pace of speed skating, do you? Well, this project's for you. Fast turns around the track become your laboratory tests in these experiments whether you skate on ice, wood, or pavement. The goal is to determine which type of turns are best in a race-tight, medium, or wide-and then to figure out why. You'll analyze the speed and stability of your turns and compare your results with those of a few fellow skaters. This is a friendly competition where the prize is learning… Read more

Topologies

Science Fair Project Idea

Scientific Method

What do knots, maps, mazes, driving directions, and doughnuts have in common? The answer is topology, a branch of mathematics that studies the spatial properties and connections of an object. Topology has sometimes been called rubber-sheet geometry because it does not distinguish between a circle and a square (a circle made out of a rubber band can be stretched into a square) but does distinguish between a circle and a figure eight (you cannot stretch a figure eight into a circle without… Read more

Ninth Grade Projects, Lessons, Activities (789 results)

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