Science-fair project: does my dog find blue faster?
A science-fair project you can run at home: does your dog find a blue toy on grass faster than a red one? On paper, a dog sees the blue toy as blue and the red one as khaki. Your dog's real result is the experiment: test it fairly and write down what really happens.
The question
Does my dog find a blue toy on grass faster than a red toy of the same kind?
| Toy | You see | A dog sees | Against grass, to a dog |
|---|---|---|---|
| Blue | blue | blue | Stands out |
| Red | red | khaki | Looks like the grass |
Worked out from published studies of dog eyes, using a flat grass colour (see best dog toy colours). Dogs also use smell, movement and brightness, so the real result may differ.
Your prediction (hypothesis)
Write it before you start, for example: "My dog will find the blue toy faster than the red one, because dogs see red and green as similar colours." Any result is a good result if you record it honestly.
You need
- Two toys that are the same except for colour: one blue, one red
- A lawn, a helper, a stopwatch (a phone works) and the data sheet
- Your dog's usual treats
Fair-test steps
- Handle both toys the same way and rub each with the same treat, so smell does not give one away.
- The helper holds your dog out of sight while you put one toy in the grass, always the same distance away (for example 5 big steps).
- Release your dog with the usual "find it" word and time until it touches the toy. Reward with a treat every time.
- Swap colours each trial (blue, red, blue, red ...), so tiredness affects both colours the same.
- Stop after 10 trials in a day, or sooner if your dog loses interest.
- Work out the average time for each colour and compare it with your prediction.
Animal welfare rules
- Treats and praise only: no scolding, no pulling, no force.
- At most 10 trials a day, with water and rest between.
- Stop at once if your dog seems stressed: tail tucked, yawning, licking lips, hiding or not wanting to play.
- Ask an adult to supervise, and skip hot days.
Record what really happens
Write every time down, even if a trial goes wrong; note what went wrong in the last column. Do not leave out results that do not fit your prediction. A result that surprises you is still science.
Data sheet
Dog's name: ______________ Date: ______________ Weather: ______________
| Trial | Toy colour | Seconds to find | Found? (yes/no) | Notes |
|---|---|---|---|---|
| 1 | Blue | |||
| 2 | Red | |||
| 3 | Blue | |||
| 4 | Red | |||
| 5 | Blue | |||
| 6 | Red | |||
| 7 | Blue | |||
| 8 | Red | |||
| 9 | Blue | |||
| 10 | Red |
Average for blue: ________ seconds. Average for red: ________ seconds.
Did the result match my prediction? What else could explain it?
____________________________________________
Will my dog really find the blue toy faster?
Nobody can promise that. The colour maths says the blue toy stands out more for a dog, but smell, training and mood matter too. That is exactly what your experiment tests.
Is this experiment safe for my dog?
Yes, if you follow the welfare rules: treats only, at most 10 trials a day, and stop as soon as your dog seems stressed or bored.