8th Grade
What are the three most important properties of a wave
A simple wave has a repeating pattern with a specific wavelength, frequency, and amplitude
What are you studying this quarter
How temperature affects collision rates
What conversion takes place during photosynthesis
Light energy is converted to chemical energy
What is a feedback loop
A process where the output of a system is fed back as an input to influence future actions
How many bones in the human body
206
The volume of the wave is related to what
The amplitude of the wave
How does temperature play a role in grain explosions
When the temperature is high this increases the kinetic energy causing more frequent collisions
What are the four main parts of a flower
The four main parts are the sepals, petals, stamens and the pistil
How do positive feedback loops impact the environment
Positive feedback loops amplify the change
What is the largest organ in the human body
Skin
The pitch of a sound is related to what
the frequency of the wave
What does it mean when the rate of a reaction is very high
There is enough energy to break chemical bonds
What would happen if plants could not open and close the stomata
They could not regulate the absorption or release of gasses
How do negative feedback loops influence the Earth's climate
They stabilize the climate by counteracting or reducing greenhouse gas concentrations
What is it called when a sound wave reflects off of a surface
What is an echo
What types of sound waves break glass
Waves with a very high amplitude
Why might an explosion happen when dust is exposed to oxygen
When more oxygen molecules are present there is an increased chance for collision
How do plants absorb sunlight energy
Plants absorb sunlight energy through pigments like chlorophyll in their chloroplasts
How does reforestation act as a climate change mitigation
Reforestation enhances carbon sequestration in forests mitigating the greenhouse effect
What gas do plants absorb from the air
Carbon Dioxide
What is the best decibel and hertz level to break glass
500 Hz and at least 100 dB
What conditions would result in the lowest risk of a grain explosion
Cold temperatures and decreased oxygen
What are the two stages of photosynthesis
The light-dependent reaction and the light-independent reaction
What is the best way to mitigate the impacts of climate change
Combine renewable energy adoption, reforestation, and carbon capture
Sound is a combination of what?
low and high pressure waves produced by vibrations