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Showing posts with label Year 7-8's. Show all posts
Showing posts with label Year 7-8's. Show all posts

Thursday, March 18, 2021

Gummy Bear Osmosis

 Aim:

I want to find out what happens to gummy bears when we put them into different solutions.

Predictions:

I predict that the gummy will soften and the color will slowly fade.

Methods:

Equipment

*4 gummy bears of the same color
*2 Petri dishes
*Paper towels
*Maker pen
*Water
*Sugar Water 
*Saltwater
*Electronic balance
*Beaker
*Measuring Cylinder
*Safty googles

Instructions:

*Gather your equipment.
*Put on your safety glasses
*Using the marker, write the name of the condition on the dish. DRY, WATER, SALTWATER, SUGAR WATER!
*Weigh the gummy bear and write the weight on the Petri dish.
*Measure 40mL, of the solution and pour it into the Petrie dish.

Results:




4 days later:

DryWaterSaltwaterSugar water
5.49g5.38g5.47g5.44g
5.47g3.97g5.26g6.52g
lost 00.2glostlostgain
40mL40mL40mL
7mL
lost 40mLlost 30mL33mL

What is osmosis?
Osmosis is a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one.  






Thursday, March 11, 2021

Skittles colour exerperiment

 Aim-

I want to find out  what happens when I put Skittles into water 

Methode:

Equipment

*A bag of Skittles
*Petri dish that looks like this 
*Warm water
*white background


Instructions:

1.Gather your equipment
2.Spread your Skittles evenly through the dish
3.Gently pour your warm water into the middle of your Petrie dish 
4. DO NOT OVERFILL YOUR PETRIE DISH!
5. Observe and record what happens

Prediction:

I think I will see the combinations of colors 


Results:


I saw the colors slowly coming together and meeting together in many colors. I then mix the water together with my hands.