Olfactory Basics
The process of detecting odors?
What is olfaction.
What is a chemical reaction?
A chemical reaction is a process that transforms substances into new substances.
What is a property of gases?
Gases have mass and take up space.
How do homemade and store-bought bath bombs differ?
Homemade bath bombs may vary in texture and fizzing compared to store-bought ones.
Why is it important to create models?
Models help visualize and explain complex scientific processes.
How do molecules reach our noses?
Molecules evaporate and travel through the air to reach our noses.
What happens during a reaction?
Molecules rearrange to form new substances and gases.
How can we identify gases?
By observing their properties such as density and flammability.
What ingredients are common in bath bombs?
Common ingredients include baking soda and citric acid.
How do models help in experiments?
They provide a framework for predicting outcomes and guiding investigations.
What role do olfactory receptors play?
Olfactory receptors detect different odors by binding to specific molecules.
How does temperature affect reactions?
Higher temperatures usually speed up reactions by increasing molecular movement.
What is density?
Density is the mass of a substance divided by its volume.
Why might one bath bomb fizz more than another?
Differences in ingredient ratios or chemical reactions can affect fizzing.
What should be included in a scientific model?
Key components like ingredients, reactions, and observable outcomes should be included.
What happens when an odor molecule binds to a receptor?
A signal is sent to the brain through the olfactory bulb indicating the presence of an odor.
What is the law of conservation of mass?
The law states that mass cannot be created or destroyed in a closed system.
What is flammability?
Flammability is the ability of a substance to catch fire and burn.
What observations help identify gas production?
Observations of bubbling and fizzing are key indicators of gas production.
How do we determine if gas is new matter?
By measuring mass before and after a reaction in a closed system.
How many different scents can humans detect?
Humans can potentially detect around 1 trillion different scents.
What is the role of gas in a bath bomb?
Gas is produced from the reaction between ingredients, leading to fizzing.
Why do some gases rise while others sink?
Gases rise if they are less dense than air and sink if they are denser.
What is the importance of testing various ingredient combinations?
Testing different combinations helps identify which produce the most gas.
What conclusions can we draw from our observations?
Observations inform us about the behavior of substances and the nature of reactions.