Biology
Name the 7 characteristics of living things
Living things…
- are made of cells
-take in nutrients
-use energy
-produce waste
-respond to stimuli
-grow
-reproduce
Give an example of a qualitative physical property and a quantitative physical property
qualitative: colour, odour, texture, state
quantitative: boiling point, melting point, mass, volume, density
All objects with a temperature give this off
What is infrared radiation?
Scientists study the interior of the Earth with these
What are seismic waves?
What is are the two main differences between a prokaryotic and eukaryotic cells?
Prokaryotic cells does not have a nucleus, and has fewer internal structures.
Eukaryotic cells have a nucleus and have many internal structures
What in the cell captures energy from the sun to produce food?
Chlorophyll
Who discovered the nucleus
Thomas Rutherford
Light can behave as a _____ and a _____.
What is particle and wave?
At which fault is the rock pulled apart, allowing one to slip downward?
Normal Fault
What idea did Democritus propose?
Matter is made made up of tiny particles that exist in empty space
How do unicellular and multicellular cells organisms grow?
Unicellular: increase size
Multicellular: cell multiplication
If the density of an object is 12.0 g/mL, and the volume is 3.0 mL, what is the mass?
36.0g
What happens as you move from left to right on the electromagnetic radiation spectrum? (Wavelength and frequency)
What is shorter wavelength and higher frequency?
On the Richter scale, an earthquake measures 6.0 in magnitude. Another earthquake measures 10.0 in magnitude. What fraction of the 10.0-magnitude earth is the 6.0-magnitude earthquake?
1/10000 of the 10.0 magnitude earthquake
How does mantle convection work?
Warmer, less dense material rises and cooler, denser material sinks.
What is the word equation for photosynthesis AND cellular respiration
Cellular respiration: sugar+oxygen=carbon dioxide + water + energy
Photosynthesis: carbon dioxide + water + light energy= sugar+oxygen
what is thermal expansion and why does it occur?
Thermal expansion is the expansion of heated materials and it occurs because heating causes particles to vibrate faster and move slightly apart
What is the difference between seeing black and white? (Use the terms absorbed and reflected in your answer.)
Black: all light is absorbed; no color is reflected
White: all light is reflected equally; no color is absorbed.
Define hot spots and how volcanoes can form above them (Include which part of the Earth it occurs and what happens at it.)
Hot regions of the earth's mantle where magma breaks through the weak parts of the crust. Volcanoes can form above them as the magma rises and melts through the crust.
Why was Wegener's theory initially rejected?
He could not explain how the continents could move.
What do the three lines of defence consist of?
First: skin, sweat, hairs, mucus, stomach acids
Second: white blood cells, inflammation
Third: specialized white blood cells
What are the four points in the Kinetic Molecular Theory of Matter
-all matter is made up of very small particles
-the particles exist in empty space
-particles are constantly moving
-energy makes particles move
What are the characteristics of a diverging lens as rays ENTER the lens? (Include whether the rays refract away or towards normals and whether they converge or diverge.)
The rays refract towards normals and diverge slightly
How does seafloor spreading occur? (What happens on the ocean floor, what does it do, what does it result in and what plate boundaries does it occur at?)
Magma erupts on the ocean floor and rises. The magma cools and hardens into new rock, pushing old rock away from the ridge. This results in the formation of oceanic crust. This happens on divergent plate boundaries.
What is a virtual image? (Include the name of the rays, their function and where it would appear on a plane mirror.)
A virtual image is formed when extended rays meet. The image would appear behind the mirror.