7th Grade Labs and Demos

8th Grade Labs and Demos

Matter and Earth Structure

  • Egg into the bottle with fire
  • Pop can being smashed in cold water
  • Ublek
  • Egyptian Heiroglyphics
  • Rocket lab
  • Cut paper in half over and over again
  • Molecule models
  • Measurement lab (height, volume, and mass)
  • Measuring the density of different objects
  • Float or sink lab
  • Ocean in a bottle
  • Foil boats
  • Density demos - backpack, nerf ball, paper clip and cotton balls
  • Food coloring diffusion
  • Diffusion demos - air freshner
  • Smelly balloons
  • Expansion of substances - thermometer, Galilean thermometer, ring and ball, hot air balloon
  • Floating ice and eggs
  • Exansion of chips in a vacuum
  • Hot water in 2-liter bottle contraction
  • Cartesion Divers
  • M & M earth model
  • Sediment bottle

Structure of Living Things

  • Cells under a microscope - onion, cheek, Elodea
  • Cell city
  • Potato osmosis
  • Egg in salt water
  • Virtual frog dissection
  • Chicken leg dissection
  • Lung model
  • Heart model
  • Microscope lab - human tissues
  • What cells really look like - online powerpoint

 

Genetics and Heredity

Classification

  • Make a classification key
  • Classification lab
  • Jelly Belly classification

Physical and Chemical Change

  • Boiling water in a paper cup over a fire
  • Pendulum lab
  • Sprite or Diet Sprite
  • Egyptian heiroglyphics
  • Shoebox atoms - what's in the black box (making infrences)
  • Burning magnesium
  • Burning rubbing alcohol
  • How many drops of water on a penny?
  • Molecule models
  • Conduction of electricity in salt water
  • Golden pennies
  • Dry ice demos
  • Burning alcohol in big water bottle
  • Sodium reacting with water
  • Burning steel wool
  • Vinegar and baking soda
  • Alka-seltzer lab
  • Grain elevator explosion
  • Burning alcohol in spray bottle
  • Silly putty
  • All mixed up lab (separate sand, iron filings, salt, sawdust)
  • Phase change lab
  • Penny mass lab
  • Melting and burning pennies

Biologic Change

  • Ecology concentration
  • Respiration lab - yeast and sugar
  • Breathing into phenolpthalein solution
  • Lion king - circle of life
  • Energy loss in an ecosystem - pour the pop down the drain

Geologic Change

  • Minerals lab
  • Rock candy
  • Ingeous rock lab
  • Sedimentary rock lab (For these labs, you can find the rocks in the great outdoors and bring them in and show them to your parents for extra credit)
  • Sand from around the world
  • Plate Tectonics model
  • Mapping plate tectonics
  • Candy quakes
  • M&M radioactive dating
  • Relative dating problems
  • Geologic Timescale

Motion, Force and Energy

  • Ping pong ball and beach ball
  • Laws of motion demos - skateboard, table cloth, etc.
  • Spaghetti Bridges
  • Gravity Demos - drop a book and piece of paper
  • Mobile
  • Lever lab
  • Lift someone up with a lever
  • Different tools as simple machines
  • Mechanical advantage lab
  • Bike - how gears work
  • Pulley demos
  • Catapults
  • Energy conversion demos
  • Kinetic and Potential energy - Skate park
  • Rollercoaster lab with tubing
  • Wave simulations
  • Light and radiation simulations
  • Waves on a slinky and on a rope
  • Conduction and covection - boiling water
  • Glass silly straws
  • Ears and eyes - how they work