What is the function of mitochondria?
Produce energy to fuel cell activities
Water in a cup slowly "disappears" on a hot summer day.
A. Condensation B. Deposition C. Freezing D. Evaporation
D. Evaporation
Oops, there's only 4.
Lithosphere, atmosphere, hydrosphere, and biosphere.
:p
The name of "hot light source"?
Name this compound:
(NH4)2SO3
Ammonium sulfite
What is the function of small intestine?
Why villi in the small intestine is important?
Function of the small intestine: absorb water and nutrients
Importance of villi: maximize surface area for nutrient absorption in the small intestine.
Draw the Bohr diagram for O2- (-2 charged oxygen ion).
Find the climate zone for Italy in Europe.
North temperate zone
Red, orange, yellow, green, blue, indigo, purple.
Red colour has the longest wavelength.
During mitosis, during what stage do chromosomes first become visible?
Prophase
Inside a leaf, what type of cell is responsible for most photosynthesis?
A. Spongy parenchyma cells
B. Palisade cells
C. Guard cells
D. Lower epidermal cells
B. Palisade cells
Finish in 30 seconds:
Fe2O3: _____________
Copper(I) oxide:_____________
HBr(acid name):____________
Fe2O3: Iron(III) oxide
Copper(I) oxide: Cu2O
HBr(acid name): Hydrobromic acid
What is the cause of ocean currents?
(hint: temperature, salt).
Thermohaline circulation.
infrared, UV rays, and visible light.
Explain the relationship between cell division, cancer cells and healthy cells.
List 4 specialized cells in human body.
Red blood cells
Bone cells
Neurons
White blood cells
Sperm
Eggs
Epidermal cells...
Are acids and bases molecular, or ionic compounds? Explain using one balanced chemical equation.
Ionic.
HCl --> H+ + Cl-
Ca(OH)2--> Ca2+ + 2OH-
How can environmental scientists study yearly weather patterns?
By looking at tree rings.
If you were painting the walls in your classroom, would you want the walls to exhibit specular or diffuse reflection?
Diffuse reflection for painting a classroom wall.
Diffuse reflection occurs when light is scattered in different directions upon striking a rough surface. This helps to distribute the light evenly and reduces strong light reflection. Unlike specular reflection that's usually on mirror surfaces, diffuse reflection is ideal for painting walls as it creates a more uniform and pleasing appearance.
Frosted glass, fog, sunglasses, a glass of clear apple juice...
Name three organs in the digestive system that food does not pass through.
Liver, pancreas, and gallbladder
How do lakes become acidic? What can be done to help with the problem?
Acid rain, chemical spills, increased carbon dioxide concentration in the atmosphere...
Solution: liming.
The fossil shown below was found in Antarctica (south pole), where everywhere is covered by ice. What does this tell us about the past climate in Antarctica?
Antarctica's temperature was once warmer than present days, where the climate can support leafy plant's growth.
What is the difference between fluorescence and phosphorescence?
Both light sources absorb UV light and emit visible light. However, fluorescence emits much more energy as visible light than phosphorescence.
What is geoengineering? Will it effectively stop climate change? Explain.
Geoengineering is not the long-term solution for climate change, because it does not address global warming.