oldideas
Investigation Ideas 07
Do Low power light bulbs give out the same light? Do they last as long as they say?
Determine the resonant frequency of glass
What sort of blade design works best for windmills?
Design a Parachute determine best size / density / material / effect on direction
Which sports ball is the most bouncy? How can the bounciness be affected?
4. Water levels- study and record varying levels over the year in a body of water; account for differences and the results on the surrounding environment.
Effects of temperature on viscosity
4. Testing of consumer products- glues, stain removers, antiseptics, mouthwash, detergents, batteries, kitchen towel
2. Fuels and their efficiency in producing energy.
10. Lenses- effects of curvature, materials on light beams
12. How strong are nylon fishing lines?
14. Which homemade airplane design flies best?
15. What factors affect the bounce of a dropped ball?
17. How strong is a toothpick?
19. Which type\size of light bulb produces the most light?
22. Devise an experiment that will list metals in order of their activity, from the most potassium to the least active ore gold
5.Plant growth - determine the effects of various nutrients, amounts of water, hours of sunlight, strength of weed killer, temperature, pollutants, pH levels on plant growth and crop yields - can plants live without oxygen, carbon dioxide - what percentages of various plants is water
7. What conditions are favourable for: -fungus growth- E.G. yeast, mold, mushroom production -algae growth -bacteria growth or control- rooting cuttings -lichen growth
10. The preferred pH level in the soil for various plants
Measure the solar output over a period, noting weather!
The effect of hand washing on the growth of bacteria and fungi
The Tolka Story, an investigation of the water along a stretch!
The Grand Canal Story, an investigation in to locks / ecology
The Effect of magnets on the growth of seeds
The Effect of Music on the growth of seeds
The Effect of Water on the growth of seeds
Bacteria in a lunch box?
Seed Dispersal how far do the seeds fly?
What is the best type of soil to grow X?
What colours do plants respond to?
Glucose to ethanol! 100ml cooking oil, 8g caustic soda, 30ml ethanol
Establish a simple test to determine the strength of a magnet. Demonstrate a more complicated method.
Sky Colour- measure differences in colour at different times of the day
To Investigate factors that melt ice faster!
how to prevent an egg from breaking when it's dropped 30 feet
Compare Insulating Ability of Different Materials
Investigate The Effect of Temperature on the Solubility of Copper Sulphate & Potassium Iodide
Calibrate 2 electric thermometers!
Measure force using quantum pills!
What temperature water make ice fastest?
To investigate the rate at which water rises up various paper (kitchen towel, blotting, writing etc)
Washburn equation/relationship dist2 = surface tension ´ radius of capillary ´ time
2 ´ viscosity
To determine the best dunking biscuit, how much liquid, how long before the biscuit collapses
To Investigate the effectiveness of various impurities on the melting of ice
To Investigate the effect of different colour light on the germination and growth of plants
To investigate the solubility of copper sulphate and its dependence on temperature
To investigate the insulation property of various materials
To determine by investigation the most effective hand wash/soap
To determine by investigation the most effective (wood) glue
To determine by investigation the most powerful/ long lasting battery
To investigate the focal length of lenses and the relationship to their physical properties
To investigate the breaking force on various fishing lines & relationship to diameter
To investigate the properties of thermistors, and their suitability to be used as a thermometer
To determine by investigation the best paper airplane design
To investigate if the printed weight on fishing lines is accurate.
To investigate the effectiveness of a Solar cooker
To investigate the effects of various materials on the freezing and boiling points of water
To determine by investigation the best paper airplane design
To investigate the best germination conditions for cress seeds
To determine the amount of vitamin C in Orange Juice
Make up a starch solution with Iodine, drop OJ in 1 drop at a time ….. noting when it clears …
Compare Insulating Ability of Different Materials
A covered beaker with 200 cm3 of boiling water at 100°C is set on a pipe clay triangle and its temperature measured and recorded every minute for 15 minutes. A second beaker with 200 cm3 of boiling water at 100°C is set in a box is completely surrounded by a cotton wool - its temperature measured and recorded every minute for 15 minutes. Other materials are tested in a similar fashion. Graphs are drawn using the same axes so that the insulation abilities of the different materials can be compared to each other and to that when insulation was not used.
Investigate The Effect of Temperature on the Solubility of Copper Sulphate & Potassium Iodide
The solubility of a substance in water is the mass of that substance that will dissolve in 100 cc of water at a particular temperature.
1. Using a pipette put 25 cc of water in a clean dry beaker.
2 The water is at room temperature, 20°C.
3. Gradually add copper sulphate to the water and stir to dissolve.
4. Keep adding until no more copper sulphate will dissolve.
5. By heating, raise the temperature to 30°C and stir.
The excess copper sulphate dissolved.
6. Continue to add more and more copper sulphate until no can dissolve.
7. By heating, increase the temperature to 40°C, then to 50°C and so on up to 90°C.
What is the difference between a series and parallel circuit?
When does a plant grow the most, during the day or night?
Where is the focal point of a lens?
How does a java applet work?
Does a truss make a bridge stronger?
Why are moths attracted to light?
Which cleaning products kill the most bacteria?
From Gas to Rust: Measuring the Oxygen Content of Air
To Investigate which common fuel generates the most heat by weight