Environmental Science
Where do all living things on the earth originally get their energy from?
The sun
What is the process by which plants make energy from the sun?
photosynthesis
What is the formula for carbon dioxide?
CO2
What is the energy of motion called?
Kinetic energy
grass....bird .....snake.....hawk
Which is the primary consumer?
bird
A student wanted to look at pond water to see what organisms they could find. Which of the following tools would the student use?
a. balance b. graduate cylinder
c. microscope d. magnifying glass
c. microscope
What occurs at the boiling point of a substance?
a substance changes from a liquid from a gas
What is the formula for speed?
distance/time
Which of the following removes carbon dioxide from the atmosphere:
a) fossil fuels b) greenhouse gases
c) plants d) dead organisms
c) plants
They speed up chemical reactions...
enzymes
Frozen orange juice is place in a bowl. After a few minutes it begins to melt. What type of change has occurred? chemical or physical?
physical
Newton's second law says:
? = mass x acceleration
Force
What are the three fossil fuels?
coal , oil, and natural gas
What is the process by which your body gets energy in every cell?
Cellular Respiration
What is the process by which dry ice transforms from a solid to a gas without going through the liquid phase?
sublimation
What is difference between velocity and speed?
velocity has a direction
The gases trap heat in the earth's atmosphere ...
greenhouse gases
What are the reactants of photosynthesis?
Carbon dioxide, water, and sunlight
Which of these is a molecule?
H2O (water)
Aluminum
H2O (water)
What is the unit for force?
Newtons (N)
What is it called when the earth heats up too much and the glaciers start to melt?
Global Warming or Global Climate Change
Why do scientists often say that photosynthesis is the opposite of respiration?
The products of respiration are the reactants of photosynthesis and vice versa.
How many hydrogen atoms are in 4 molecules of NH4?
16
Tommy placed a black, white, silver, and blue can under a heat lamp with a thermometer in each one. Which one of the cans will be the warmest?
Black - it absorbs the heat
grass -> bird -> snake -> hawk
Which is the secondary consumer?
snake
What organelle is responsible for packaging and sorting proteins?
Golgi Apparatus
Random answers that may include: bending, cutting, or melting something, but not changing the molcules in a permanent way.
Through which phase of matter does sound travel fastest?
solid
Why are fossil fuels considered “nonrenewable”?
they take millions of years to create
Which color of light is the WORST for shining on plants so they can do photosynthesis? Why?
GREEN! Because plants reflect green light, that's why we see them as green. If they reflect green, they are not using that light as energy.
What can you do to get a mylar balloon to float again once it has deflated?
Heat it up to increase the volume and decrease the density
You push into a wall with 30 Newtons of force, it pushes back with?
30 Newtons