Heat Transfer
Which of the following is the best description of radiation?
D. the emission of energy in the form of rays or waves
The variable that the scientist changes.
independent variable
Why should scientific investigations be replicable?
When trees die, they often fall on the ground and decompose. Which part of the Earth system includes dead and decomposed trees
Biosphere
The hydrosphere is predominantly made of
water
Which of the following is the best description of conduction?
D. The transfer of heat through touch.
D. The transfer of heat through touch.
The outcome variable. The variable that is measured.
dependent variable
Dr. Maxwell performed several experiments which seem to indicate that eating chocolate is always bad for your health. How should other scientists respond to Dr. Maxwell's research?
A. They should try to reproduce Dr. Maxwell's research to verify his results.
What is the function of the ozone layer?
A. to allow UV rays to get to Earth
B. to block most of the harmful UV rays from getting to Earth
C. To keep oxygen in
D. to allow meteors to get to Earth
B. to block most of the harmful UV rays from getting to Earth
The Earth's biosphere is consists of
all living things
Convection currents, resulting from uneven heating of the Earth's surface, cause _______ to form.
(Explain)
Jeremiah sets up an experiment to better understand the process of deposition. In his experiment, he places a pile of sand at the top of a tube. Then, he pours water down the tube at varying speeds. Finally, he measures the amount of sand that is deposited throughout the tube.
What is the test variable (independent variable) in Jeremiah's experiment?
The speed of the water
Which statement is necessary in order for a scientific investigation to be valid?
A. The investigation must be able to be repeated by others.
B. The investigation must produce data that can be graphed.
C. The investigation must follow all the steps of the scientific method.
D. The investigation must have a conclusion that matches the prediction.
A. The investigation must be able to be repeated by others.
What helps maintain Earth's warm temperatures?
A. the mesosphere
B. greenhouse effect
C. giant Earth blankets
D. the biosphere
B. greenhouse effect
Alligators spend most of there evening hunting for fish or birds in the water. Which two spheres are interacting?
Biosphere and hydrosphere
In heat transfer, heat always flows from the _?_ substance to the _?_ substance.
A. hotter to colder
B. colder to hotter
C. hotter to hotter
D. colder to colder
A. hotter to colder
In Ben's experiment, he places a toy car on a smooth, flat surface. Then, Ben applies varying amounts of force to the back of the car and measures the car's initial speed using a radar gun. The toy car is allowed to decelerate on its own until it stops. Finally, Ben measures the total distance that the car traveled.
What is the outcome variable (dependent variable) in Ben's experiment?
The distance that the car travels
What happens if the results of a scientist's experiment are NOT similar to the results gathered by other scientists doing the same experiment at a later date?
A. The results of the experiment are changed by the scientists.
B. The results of the experiment are published in scientific journals.
C. The results of the experiment are questioned by the other scientists.
D. The results of the experiment are accepted by the scientific community.
C. The results of the experiment are questioned by the other scientists.
A researcher did an investigation to see if corn seeds would sprout at different times depending on the temperature of the water in which they were placed. Choose all constant variables?
A. How long to sprout
B. type of seed used
C. water temperature
D. how much water used
B. type of seed used
D. how much water used
Pick the true statement.
A. Ms. Howery's tomato plant growing is an interaction between biosphere, geosphere, and atmosphere.
B. Mr Ferguson sailing is an interaction between the cryosphere, biosphere, and atmosphere.
C. Mrs. Baldwin running is an interaction between geosphere, hydrosphere, and atmosphere.
D. Mrs Plummer shopping is an interaction between the geosphere, and the hydrosphere.
A. Ms. Howery's tomato plant growing is an interaction between biosphere, geosphere, and atmosphere.
What causes the circulation of air in the atmosphere?
A. Air in the atmosphere is heated by the sun and sinks to the ground.
B. The ground is heated by the sun and then heats the air, causing the air to rise.
C. Air loses heat to the ground and then rises upward to obtain more energy.
D. The sun heats the clouds which forces the cooler air to move away and sink.
B. The ground is heated by the sun and then heats the air, causing the air to rise.
Sarah wants to know where in her garden chamomile would grow the best. She thinks chamomile will grow best in the corner of the garden that gets the most sunlight. To test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment.
What is the constant (control) variable?
The Chamomile
Which of the following scenarios demonstrates the replication of a scientific investigation?
D. Dr. Kim performs an experiment in her laboratory. Then, Dr. Stevens performs the same experiment in his laboratory to verify the results.
For replication, it's important to have an organized procedure to follow. Why is this a big deal?
A. To ensure the results are consistent.
B. If you get different results, you'll be in trouble.
C. If you get paid to replicate, you have to follow directions.
D. There are so different kinds of beakers, so it helps.
A. To ensure the results are consistent.
Sometimes fires burn down large areas of forests that are part of the biosphere. Other than the biosphere, which of Earth’s other systems is a forest fire most likely to affect?
A. geosphere
B. cryosphere
C. atmosphere
D. hydrosphere
C. atmosphere