Suspended rice Follow FizzicsEd 150 Science Experiments: Comments 0 You will need A Coke bottle or any other plastic screw-top bottle (the smaller the better) Uncooked Rice A pencil or chopstick or any other straight rod Copyright Instruction Video Instruction 1 Fill the bottle with uncooked rice. 2 Plunge the pencil straight down into the bottle. Try to lift the bottle just by the pencil. Doesn’t work too well… 3 Now try plunging the pencil in and out at least 30 – 40 times at different heights for compaction. 4 Can you now lift the bottle off the table just using the pencil? Why does this work? This experiment is worth running over a large bowl to catch any mess! Troubleshooting Doesn’t work? Try putting the pencil into the rice at different heights each time. 5 Get the Unit of Work on Forces here! Push, pull Friction & spin! From inertia to centripetal force, this unit covers many concepts about Newton’s Laws! Includes cross-curricular teaching ideas, student quizzes, a sample marking rubric, scope & sequences & more 6 School science visits since 2004! – Curriculum-linked & award-winning incursions. – Over 40 primary & high school programs to choose from. – Designed by experienced educators. – Over 2 million students reached. – Face to face incursions & online programs available. – Early learning centre visits too! 7 Online courses for teachers & parents – Help students learn how science really works Why Does This Happen The more contact between two surfaces, the great the friction. When you push the pencil in and out of the rice you are slowly compacting the rice and pushing air out of the container. This means that more and more rice gets in contact with your pencil which slowly but surely increases the friction between the rice and the pencil. Eventually, there is so much friction you can lift the rice-filled jar, or bottle, into the air as the frictional forces are greater than the force of gravity. Road safety application Friction all about contact, something that you definitely want when it comes to your tyres! Friction allows you to transfer forces from your vehicle to the road surface, allowing you to change direction, accelerate and brake. Regularly check the condition of your tyres, ensuring that they have enough tread to disperse water (to keep you in contact with the road) as well as that they are inflated to the correct pressure. Variables to test More on variables here Try different types of rice. Try different widths of pencils & sticks… which is the optimal size? Is it possible to perform the same demonstration using sand or gravel in the bottle? Learn more! Teaching about Newton’s laws? Check out the Forces, Friction & Movement workshop! Get in touch with FizzicsEd to find out how we can work with your class. Forces, Friction & Movement Years K to 6 Maximum 30 students School workshop 60 or 90 minutes Online Class Available Read More Enquire Now Sale! Balloon Helicopter $4.35 Original price was: $4.35.$3.95Current price is: $3.95. inc. GST View Details Add to Cart Trustpilot STEM Full Day Accelerator - Primary Designed from real classroom experiences, this modular day helps you create consistently effective science learning that directly address the new curriculum with easily accessible and cost-effective materials. Read More Enquire Now Be Amazing! How to teach science, the way primary kids love. $29.95 inc. GST View Details Add to Cart Trustpilot
Plunge the pencil straight down into the bottle. Try to lift the bottle just by the pencil. Doesn’t work too well…
Can you now lift the bottle off the table just using the pencil? Why does this work? This experiment is worth running over a large bowl to catch any mess! Troubleshooting Doesn’t work? Try putting the pencil into the rice at different heights each time.
Get the Unit of Work on Forces here! Push, pull Friction & spin! From inertia to centripetal force, this unit covers many concepts about Newton’s Laws! Includes cross-curricular teaching ideas, student quizzes, a sample marking rubric, scope & sequences & more
School science visits since 2004! – Curriculum-linked & award-winning incursions. – Over 40 primary & high school programs to choose from. – Designed by experienced educators. – Over 2 million students reached. – Face to face incursions & online programs available. – Early learning centre visits too!
Teaching about Newton’s laws? Check out the Forces, Friction & Movement workshop! Get in touch with FizzicsEd to find out how we can work with your class.
Forces, Friction & Movement Years K to 6 Maximum 30 students School workshop 60 or 90 minutes Online Class Available Read More Enquire Now
Sale! Balloon Helicopter $4.35 Original price was: $4.35.$3.95Current price is: $3.95. inc. GST View Details Add to Cart Trustpilot
STEM Full Day Accelerator - Primary Designed from real classroom experiences, this modular day helps you create consistently effective science learning that directly address the new curriculum with easily accessible and cost-effective materials. Read More Enquire Now
Designed from real classroom experiences, this modular day helps you create consistently effective science learning that directly address the new curriculum with easily accessible and cost-effective materials.
Be Amazing! How to teach science, the way primary kids love. $29.95 inc. GST View Details Add to Cart Trustpilot
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