Chemistry
Which is a compound?
Na, H2O, Ca, Ne
H2O
What is Newton's 1st Law?
Law of Inertia, an object in motion stays in motion, unless acted on by an unbalanced force.
What is the first stage of life for all stars?
Nebulae
Where is DNA stored in a cell?
The nucleus
What is a trait? Give one example
A characteristic of an organism, ex: eye color, hair
How many Carbon atoms are in 3 molecules of Glucose?
3C6H12O6
18
Two workers are pushing a box. One is pushing to the right with a force of 5N the other is pushing to the left with a force of 20N. What is the net force and what direction is the box moving in?
15N to the left
The air pressure today is low and a cold front came in over night. What type of weather are we experiencing?
Cold, cloudy, and rainy
What is the difference between a plant cell and an animal cell?
Plant cells have chloroplasts and cell wall. Animals cell don't have either.
Are all traits adaptations?
No
Is the equation following the Law of Conservation of Mass?
8CO2 + 6H2O --> 8C6H12O6 + O2
No, there are 22 oxygens in the reactants and 18 oxygens in the products
Using Newton's 2nd Law find the Force:
Force: ?
Acceleration: 10m/s2
Mass: 8kg
80N
What type of galaxy is the Milky Way?
Spiral Galaxy
What happens to a food web if all producers die?
The food web will collapse, all consumers will die too.
What are the three types of adaptations?
Structural, Behavioral, Physiological
2H2 + O2 --> 2H2O
2H2: 2.4g
O2: ?
2H2O: 83.4g
O2: 81.0g
You have 3 carts with different weights, which will accelerate the fastest?
Cart 1: 0.125Kg
Cart 2: 0.225Kg
Cart 3: 0.200Kg
Cart 1
How many stars are in our solar system?
1
A student wants to study primary succession by removing all the plants in a plot of irrigated farmland previously used to grow corn. Will their research be successful?
No, there will still be soil leftover, so this is not primary succession.
A frequency of mice with dark fur has increased over time, why might the mice not have light fur anymore?
There is less snowfall so mice needed darker fur to camouflage
2Ca + 2H2O --> 2Ca(OH)2 + H2
Count all atoms for each element in the reactants and the products.
Reactants - Ca: 2 H: 4 O: 2
Products - Ca: 2 H: 6 O: 4
A force of 48.0 newtons pushes a water bottle that weighs 14.0Kg. The friction from the table pushes back with a force of 41.0N. What is the acceleration?
Explain the difference between a neap tides and spring tides.
Spring tides create the strongest tides when the sun, moon, and Earth are all aligned. Neap tides occur when the sun, moon, and Earth create a 90 degree angle, tides are weaker.
A student dusts off a table and begins to cough. As they cough their muscles tense causing them to exhale. Which body systems are being used?
Muscular and respiratory
The sea snake gets 25% of its oxygen through it's skin. What type of adaptation is this?
physiological