Tag Archives: Science Experiment

Homework Help: Science Experiments

Homework Help: Science Experiments

2013novScienceFairIdeas

Looking for an idea for a science project? Here are several science experiment ideas that use materials easily found in your house. A couple of them might require a trip to the grocery store or pharmacy, but mostly you can just raid the garage, kitchen or medicine chest for the ingredients. Many experiments you will want to do OUTSIDE. Each experiment will give you directions as well as suggest websites and books that will help you explain what science is at work during the experiment.

Science Project Ideas:

ATOMS & MOLECULES
Atoms: A Bunch of Empty Space
Density: Buoyancy
Density: Layer Column
Density: Marbling Paper
Miscible Molecules: Lava Bottle
Polymers: Poke Holes in a Ziploc
Polymers: Borax Goo
Polymers: Cornstarch Goo
Saturation: Growing Crystals
Soluability: Sharpie Pen Tie Dye
Supersaturated: Borax Crystals & Rock Candy
Static Electricity: Salt and Pepper Separator
Surface Tension: Pepper Scatter
Surface Tension: Soap Bubbles
Surface Tension: Sand Castles

CHEMICAL REACTIONS
Acids: Bouncing Egg
Chemical Bond: Kool Aid Tie Dye
Chemical Reaction: Exploding Ziploc
Chemical Reaction: Penny Cleaner
Chemical Reaction: Plastic Bottle Geyser
Chemical Reaction: Milk Play Dough
Chemical Reaction: Milk Glue
Nucleation: Mentos Volcano
Oxidation: Brown Apples

HEAT
Insulators: Blubber Test
Insulators: Keeping Warm
Melting Point: DIY Slushie
Heated Gases Expand: Ivory Soap

PHYSICS
Aerodynamics: Paper Airplanes
Air Pressure: Do Not Open Bottle
Centripetal Force: Hex in a Balloon
Centripetal Force: Tornado in a Bottle
Friction: Thick Book Friction
Momentum: Pendulums
Newton’s 1st Law (Inertia): Tablecloth Trick & Egg Drop
Newton’s Second Law: Comet Cratering
Newton’s Third Law: Rocket
Center of Gravity: Balance Pop Can
Chromatography: Black Ink
Engineering: Newspaper Geodesic Dome
Potential & Kinetic Energy: Marshmallow Catapult

BIOLOGY (LIFE)
Cell Respiration: Balloon Blow Up
Hydrologic (Water) Cycle: Make a Terrarium
Transpiration: Flower Transformation

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Websites:

Here are some websites that have great step-by-step directions and photographs for planning a great science project.


Databases:

Science in Context: is a database you can use in any IndyPL Library Branch or at home. Login using your IndyPL library card number. The Science in Context database will show you articles, images and videos about science topics.​

 

science-fair-discoverer-logo
Science Fair Discoverer is a database you can use in any IndyPL Library Branch of at home. Login in using your IndyPL library card number. It is a great way to find experiments that use common around-the-house items.  Search by asking where you want to begin: In the recycling bin? In the junk drawer? In the yard? In the Kitchen? In the Bathroom?  When an experiment is selected, you will see a list of needed items and directions.

 

You can also ask a math and science expert for homework help by calling the Ask Rose Homework Hotline. They provide FREE math and science homework help to Indiana students in grades 6-12.

 


Books:

Use your indyPL Library Card to check out books at any of our locations, or check out e-books and e-audiobooks from home right to your device. Click on a book jacket below to request a book or download it. Need help? Call or ask a Library staff member at any of our locations, text a librarian at 317 333-6877, or leave a comment.

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Science Experiment: Newton’s Second Law of Motion

Science Experiment: Newton’s Second Law of Motion

Sir Isaac Newton was an English scientist. He was born in 1642 and died in 1727. This was around the time of the early colonization of North America: the founding of some of the original 13 colonies, the French and Indiana wars and the Salem witch trials, but before the American Revolution.

Newton is best known for three very important principles of physics called classical mechanics. These principles describe how things move and are referred to today by his name – Newton’s Laws of Motion. There are three of them, Newtons First, Second and Third Law of Motion. Today’s experiment will demonstrate Newton’s Second Law of Motion.

Newton’s Second Law of Motion states that acceleration is produced when a force acts on a mass. Riding your bicycle is a good example of this law of motion at work. When you push on the pedals of your bicycle, your bicycle moves, or accelerates. You are increasing the acceleration of the bicycle by applying force to the pedals. Your leg muscles pushing on the pedals is the force that is making the bike move.

Newton’s Second Law also states that the greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object). Say you have two identical bicycles that each have a basket. One bicycle has an empty basket. One bicycle has a basket full of bricks. If you try to ride each bicycle and you push on the pedals with the exact same strength, you will be able to accelerate the bike with the empty basket MORE than the bike with the basket full of bricks. The bricks add mass to the second bicycle. With bricks in the basket, you would have to apply more force to the pedals to make your bicycle move.


Comet Cratering Demonstration

TryScience Comet Crateringsrpcometsetup2

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We gathered the items suggested by TryScience and gave this one a try. We put several spoonfuls of flour in the bottom of a pie plate and spread it out to make a level surface. Then we sprinkled a thin layer of hot chocolate mix on top of the flour. We held a marble above the pie plate and dropped it. The marbles made perfect sphere imprints in the flour.

Comet Cratering Science Project:

Use three different sizes of marbles to turn this demonstration into an experiment. Remember that in a science experiment you want to test only ONE variable. In this experiment you only want to change the size/weight of the object that is falling. You want to make sure each object is the same shape. The marbles are all spheres. They are all the same shape. If we changed the shape of the object too, it would be hard to measure the difference in the impact craters. You also need to pay close attention to how far away the marbles are from the surface of the flour before you let go of them. Use a ruler to make sure you drop each marble from exactly one foot above the surface of the flour. The shape of the objects and the distance the objects are away from the surface are the SAME. Only the size of the objects are different.

Do the experiment three times using the same three marbles that are the same shape and dropped from the same height, but are different in size. The three times you repeat the experiment are called trials. Make a chart to keep track of the results. After each trial measure the width of the impact crater made by each of the three marbles. Which marble makes the largest impact crater? Which marble makes the deepest impact crater? Why do you think so?


Websites, Activities & Printables:


Science in Context: Newton’s Second Law of Motion is a database you can use in any IndyPL Library Branch or at home. Login using your IndyPL library card number. The Science in Context database will show you articles, images and videos to help you learn about Newton’s Second Law.​

 

 

You can ask a math and science expert for homework help by calling the Ask Rose Homework Hotline. They provide FREE math and science homework help to Indiana students in grades 6-12.


Books:

Use your indyPL Library Card to check out books at any of our locations, or check out e-books and e-audiobooks from home right to your device. Click on a book jacket below to request a book or download it. Need help? Call or ask a Library staff member at any of our locations, text a librarian at 317 333-6877, or leave a comment.

Junk Drawer ScienceScience Stunts Fun Feats of PhysicsWho Was Isaac Newton?Lives of the ScientistsWhat Are Newton's Laws of Motion?Can You Feel the Force?Give It a Push Give It a PullIsaac Newton Discoverer of GravityGiants of Science Isaac NewtonIsaac the AlchemistPhysics Investigate the Mechanics of NatureProfessor Astrocat's Atomic Adventure a Journey Through PhysicsYou Wouldn't Want to be Sir Isaac NewtonIsaac Newton and Physics for Kids
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Science Experiment: Density – Buoyancy

Science Experiment: Density – Buoyancy

Every object on earth is made of atoms. Gravity pulls these atoms to the earth. You can measure the pull of gravity on an object. We call that measurement weight.

A molecule is a group of atoms bonded together. Density  is how close together the molecules of a substance are or how much mass a substance has in a given space.

For example, if you have one cup of jelly beans and one cup of marshmallows, the jelly beans have more mass because there is more “stuff” compacted into the cup. The marshmallows have less mass because the molecules of marshmallows or NOT close together. Marshmallows are mostly air.

If you put each of those cups in a microwave to melt the jelly beans and the marshmallows, the sugar and water molecules that make up the jelly beans would almost fill the cup to the top. The sugar and water molecules that makes up the marshmallows would only fill the cup a little bit because marshmallows have less mass, they are mostly made of air. Materials with more density weigh more. A cup of jelly beans weighs more than a cup of marshmallows.

For an object to be buoyant, or float, it must have less density that what it is floating in, or, it has to have something attached to it that helps it float – like you with a life jacket on.srplife-jacket

To investigate buoyancy, try this experiment:

You Will Need:

  • Drinking Glass
  • Clear Soda
  • Water
  • Ten Raisins

Fill one clear glass up with water and drop in five raisins. Fill another clear glass up with clear soda like sprite or 7up. Drop in five raisins. What happens when you drop the raisins in? What a few minutes – now what is happening to the raisins in each glass? Can you guess why the raisins are behaving differently?

Raisins are heavier than the water in the drinking glass. The raisins are also heavier than the soda in the drinking glass. At first, both sets of raisins sink to the bottom of the glass, they don’t float.

But the soda has little air bubbles in it – the carbonation. When there are enough of these little carbonated balloons (the bubbles) stuck to the raisins the bubbles lift the raisins to the surface making the raisin float. The bubbles are like little temporary life jackets! When the bubbles pop and the gas inside them escapes into the air…the raisins don’t have anything to help them float anymore and they sink to the bottom of the glass again.

Science Experiment Idea: Try putting other small objects in soda to see if the bubbles will attach to them and help them float to the surface of the soda. Try a penny, a toothpick, a peanut, or a skittle. Can you find something that the bubbles will float to the surface like the raisin?


Websites, Activities & Printables:

More IndyPL Experiments about Density:


Science in Context: Bouyancy is a database you can use in any IndyPL Library Branch or at home. Login using your IndyPL library card number. The Science in Context database will show you articles, images and videos to help you learn about bouyancy.​

 

 

You can also ask a math and science expert for homework help by calling the Ask Rose Homework Hotline. They provide FREE math and science homework help to Indiana students in grades 6-12.


Books:

Use your indyPL Library Card to check out books at any of our locations, or check out e-books and e-audiobooks from home right to your device. Click on a book jacket below to request a book or download it. Need help? Call or ask a Library staff member at any of our locations, text a librarian at 317 333-6877, or leave a comment.

Does It Sink or Does It Float?Floating and SinkingFlota se HundeHow Does It Fly Hot Air BalloonsWhat Floats What SinksCaptain Kidd's Crew Experiments with Floating and SinkingHow Do Hot Air Balloons Work?Things That Float and Things That Don't
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Science Experiment: Miscible Molecules – Lava Bottle

Science Experiment: Miscible Molecules – Lava Bottle

Explore Atoms and Molecules

Sometimes when atoms come together to form a molecule one end of the molecule has a positive charge and one end of the molecule has a negative charge. When this happens the molecule is called a polar molecule. Molecules that do not have two different electrical poles are called non-polar molecules.

This experiment will  show you how polar molecules and non-polar molecules behave when added together. If two kinds of molecules are added together that are both polar molecules, they will mix. They are miscible. Miscible means that the two things can mix together. If two non-polar molecules are added together they will also mix and are miscible. However, if a non-polar molecule and a polar molecule are added together, they will NOT mix together. This is called imiscible. Imiscible means that the two kinds of molecules CANNOT mix together.

What You Need:srpalkaseltzerdog

  • Plastic Bottle
  • Water
  • Vegetable Oil
  • Food coloring
  • Measuring Cups
  • Alka Seltzer

Fill the bottle about 3/4 of the way up with vegetable oil. Fill the bottle the rest of the way up with water. Now add some drops of food coloring. Close the cap on the bottle and shake it up. What happens?

Break the alka seltzer tablet in half. Open the bottle and drop in one half. What happens? Once the bubbles settle down drop in the other half. What happens again?

Water is a polar molecule. Vegetable oil is a non-polar molecule. These two substances do not mix together, they are imiscible (they will not mix together). That’s why you see the blobs of water bobbing around in the oil. Food coloring is a polar molecule so it WILL mix with the water. The water and the food coloring are both polar molecules and will mix together. That’s why the water blobs turn the color of the food coloring and the oil does not.

The alka seltzer just makes the bottle more fun because it makes the colorful water blobs move without shaking the bottle. The alka seltzer tablets dissolve in the the water and make carbon dioxide gas (like we saw vinegar and baking soda do in the Exploding Ziploc experiment). The carbon dioxide gas bubbles attach to the colorful water blobs and make them float to the top of the bottle. When the gas bubbles pop there is no gas bubble to hold up the water blob, so it slowly floats back down to the bottom of the bottle.


Websites, Activities & Printables:

Science in Context: Molecules is a database you can use in any IndyPL Library Branch or at home. Login using your IndyPL library card number. The Science in Context database will show you articles, images and videos to help you learn about molecules.​

 

 

You can also ask a math and science expert for homework help by calling the Ask Rose Homework Hotline. They provide FREE math and science homework help to Indiana students in grades 6-12.

 


Books:

Use your indyPL Library Card to check out books at any of our locations, or check out e-books and e-audiobooks from home right to your device. Click on a book jacket below to request a book or download it. Need help? Call or ask a Library staff member at any of our locations, text a librarian at 317 333-6877, or leave a comment.

Atomic and Molecular StructureAtoms and MoleculesAtoms and MoleculesMixtures and SolutionsWhat Do You Know About Atoms and Molecules
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Science Experiment: Transpiration – Flower Transformation

Science Experiment: Transpiration – Flower Transformation

Experiments with Plants

Plant parts like petals, leaves and stems have little holes called stomata – kind of like the pores in our skin. When stomata open, water escapes. When this happens the water is replaced by the plant absorbing water up from the roots into the stem and leaves and petals. As water evaporates from the leaves and petals more water is sucked up through the stem from the roots. This is called tranpiration…kind of like a person sucking on a straw. What You Need:

  • White Flowers (Carnation, Queen Anne’s Lace)
  • Food Coloring
  • Water
  • Vase

Fill a vase with water. Add food coloring to the water. Collect or buy some white flowers. Make a fresh cut at the end of the flower stem and put the flowers in the water. Check on the flowers every hour. How are the petals changing?


Websites, Activities & Printables:

Science in Context: Transpiration is a database you can use in any IndyPL Library Branch or at home. Login using your IndyPL library card number. The Science in Context database will show you articles, images and videos to help you learn about transpiration.​

 

 

You can also ask a math and science expert for homework help by calling the Ask Rose Homework Hotline. They provide FREE math and science homework help to Indiana students in grades 6-12.

 


Books:

Use your indyPL Library Card to check out books at any of our locations, or check out e-books and e-audiobooks from home right to your device. Click on a book jacket below to request a book or download it. Need help? Call or ask a Library staff member at any of our locations, text a librarian at 317 333-6877, or leave a comment.

A Seed is the StartExperiments with PlantsExplanatorium of NatureNational Geographic Kids PlantsSuper Simple Things to do with PlantsThe Amazing Life Cycle of PlantsThe Secret Lives of Plants
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