What color is the mold? This is many times studied in school with a simple experiment. For each of the bread types, A, B or C average the amount of mold grown over the ten days and write these figures into a table. Compare the specimens after two weeks. Bread Mold If a slice of bread were to be left exposed for a few days, ligh- colored patchy or furry growths will be observed on its surface. It breaks down dead organic material and recycles the nutrients back into the soil.
Types of slimy mold are more like amoeba than their cottony cousins and leave a moister, slicker mass on the molded surface. What happens if you rub the bread in the dirt before putting it in the bag? Big glass jars and clear plastic containers work great, but you'll have to throw away the container when you're through, so check with a grown-up about what you can use. Further Experiments Now that you have finished and obtained some results, maybe you want to see if other variables affect the rate at which mold grows. Bread mold is actually a kind of fungus. Wipe the dust over the bread slices you want to experiment with. And have bought mold spores. This and dozens of other cool activities are included in the Exploratorium's Science Explorer books, available for purchase from our.
There are mold spores all around us in the air which will eventually grow on the bread but your experiment will take longer. You could also try adding more moisture to the slices of the bread, or use different amounts of lemon juice and sugar on the slices. Does sodium have an effect on the growth of bread mold? Usually, one sees thread like structures on top of which there is a circular shape. Mold is not a good thing for some people to smell or breathe. There's nothing worse than finding a moldy piece of fruit in the bottom of a bag.
What do you think will happen if you change the amount of moisture? Well, one teacher in Gray's Creek, North Carolina, has managed to do both for her class in one foul, really gross swoop. To grow mold on bread you will need to collect the following materials: a slice of bread any kind , a sealable plastic bag, a spray bottle, and water. What conditions does your child think are conducive to mold growth in nature? People with sensitive respiratory or immune systems may have an allergic reaction to these background levels of spores. If you watch that mold for a few days, it will turn black. This bread mold will help your child find out, while developing important hypothesis-making and experiment-designing skills. Moldy food must be thrown away and this costs restaurants and manufacturers a lot of money.
That's why refrigerating your bread is a good idea, in order to prevent the bread from getting moldy too quickly. It is important to know as some molds can make you very sick if eaten. It grows on food and other organic matter, breaking it down into slime and extracting nutrients for growth. Because the researcher will be measuring mold growth on food and because there is rarely if ever an acceptable level of mold growth on food, absolute precision in measurement is not necessary. If you use a big jar, lay it on its side.
To begin, set up two bread specimens and two fruit samples. Be sure the jar in the refrigerator is not in direct contact with other food stuffs. There was moisture from the water, warmth from the environment and bread as a food source. They grow from tiny spores that float around in the air. While not all mold is toxic, there are some types of mold especially black mold that is very dangerous to breathe. Questions: Did the amount of moisture affect mold growth? We just wanted to see which bread piece would mold first, so we did not do any mold measuring.
Not all mold is cottony, however. Mold commonly grows on bread faster in warm, dark, moist conditions. Meredith Juncker is a PhD candidate in Biochemistry and Molecular Biology at Louisiana State University Health Sciences Center. Write down notes about the size and color of your colonies. Putting the bread slice in the freezer will stop the growth of mold completely as the temperatures in the freezer are way below the favorable temperature.
Conclusion is an important part of the experiment, so make sure you read your observations carefully before you put down the appropriate conclusion of the project. Freezing will be helpful if prolonged storage is required. You can then plot this information onto a graph and begin to explore your results. So, gather the above equipment and follow the below steps. Why didn't some foods get moldy? Well many of these overused preservatives have negative health effects on people. The five 24 Hour Science Projects have experiments our sons have completed successfully. Ensure your dog does not eat mouldy bread or come into contact with plates, dishes etc that mouldy bread has touched.