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The mass of an empty petri dish may be recorded in order to conduct weighing by difference. After a substance is added to the dish, the weight of the added substance can be calculated by taking the difference between the combined mass and the mass of the empty dish. The tare function on a scale performs this calculation automatically. However, the tare can easily be reset, and thus it is necessary to write the mass down so that it will not be lost.
What else can I help you with?
How much does petri dish weigh?
not too sure. i would assume a petri dish would hold 25 milliliters of water in a room temperature.
Why is the lid of a petri dish only partly opened?
while pouring the agar ,if we open the whole lead of the petri dish there would be a chance of the bacterial and fungul contamination.
Why would you grow bacteria in petri dishes?
Growing bacteria in petri dishes allows researchers to isolate and study individual species or strains. This helps to understand their characteristics, behaviors, and growth patterns. It is a common method to conduct experiments and tests in microbiology.
What would you call a liquid at the end of a experiment?
The liquid at the end of an experiment would typically be referred to as the "final solution" or "remaining liquid." It might also be specifically labeled based on its composition or purpose in the experiment.
Who shot gold with radiation to show atoms are mostly empty space?
The experiment you're asking about was performed by Ernest Rutherford, and it's one of the most important experiments in our quest to understand the nature of atoms. We call this experiment the gold foil experiment. What Rutherford did was shoot alpha particles, which are just charged helium atoms, at thin gold foil. Most of the alpha particles passed right through the gold foil. Some of the particles would deflect by a small angle. Occasionally, though, some of the particles would shoot back at the alpha emitter or off at a sharp angle. Before this experiment one of the more popular atomic models was the "plum pudding" model. This model said that protons and electrons filled up all the space of the atom equally. We know now, and because of this experiment, that protons are located at the very center of an atom and they take up very little space. If the plum pudding model were correct you would expect the particles to all act the same; either all of them would be reflected in the same direction or all of them would pass through. But, if the protons were all tightly packed in the center you would expect most of the alpha particles to pass straight through the gold foil because they are just passing through empty space. Occasionally one might get close and be deflected a little bit. Even more rarely you would expect to see some of the alpha particles shoot right back at you. These are exactly the results you see from the gold foil experiment and they show us that atoms are mostly empty space.
Who first came up with the idea that the atom is mostly empty space?
The idea that the atom is mostly empty space was first proposed by Ernest Rutherford based on his gold foil experiment in 1909. This experiment led to the discovery that most of an atom's mass is concentrated in a nucleus at the center, surrounded by electrons in vast empty space.
Does a petri dish melt if microwaved for 3 minutes?
Oh, dude, if you throw a petri dish in the microwave for 3 minutes, it's not gonna melt like a popsicle on a hot summer day. Petri dishes are usually made of heat-resistant material, so they can handle a little nuking. But hey, maybe don't try it out just for kicks, unless you're aiming for a science experiment gone wrong!
How much does petri dish weigh?
not too sure. i would assume a petri dish would hold 25 milliliters of water in a room temperature.
Why is the lid of a petri dish only partly opened?
while pouring the agar ,if we open the whole lead of the petri dish there would be a chance of the bacterial and fungul contamination.
What does observation means in scientific method?
Observation in the Scientific Method means using your senses to interact with your experiment. You would observe the experiment for smell, sound, temperature, color, etc. and record those observations as part of your data.
How do you collect and analyze bacteria?
you can catch bacteria by not coughing and sneezing into a hankie.
What is a good science experiment using toothpaste for seventh grade?
i would use various pastes and record how well the different brands clean the teeth
How would I find the procedure to find if the temperature of a soccer affects how far you can kick it?
You would have to set up an experiment where you kick a soccor ball at various tepmeratures and record the results as data.
What part of speech is to experiment?
To experiment is a verb. An experiment would be a noun.
Why are the bottoms of petri plates labeled rather than the lid?
1) The bottom of the plate contains the agar and your experiment, if the lid gets lost but the bottom is labled you haven't lost any work. If you label the lid and the lid gets lost you won't be able to identify your experiment. You would have to start from the beginning, making plates, sterilizing plates, doing the experiment; perhaps not an option if it were a clinical sample. 2) The plates are placed in the incubator with their bottom half upper most. This is done to prevent droplets of moisture falling from the lid and smearing the culture. As the bottom is upper most when you are looking in the incubator it makes sense to label the bit you can see most easily.
What would you need to do to determine whether bacteria growing on a petri plate are anaerobes?
some sense
What instruments would you use to grow bacteria?
A petri dish.See the Related Questions for more information.
