What is a hypothesis?
Scientific Guess
What is a simple definition of energy?
the ability to do work
What state of matter does sound travels fastest through?
Solid
What type of cells will have chloroplast and cell wall?
Plant
What is the function of the skeletal system?
At least one of the following:
Framework,
protection of organs,
production of RBC
What is an independent variable?
the variable that you are independently changing
Conduction, convection, radiation
The amplitude of a wave indicates what part of sound?
Volume
What is the main function of lysosome?
Take care of waste
What system delivers nutrients to all cells?
Circulatory system
What is a dependent variable?
what you measure and what is affected in an experiment
How does convection allow for heat to rise?
What is the biggest difference between the way sound and light travels?
Light travels through space, while sound needs medium to travel
If cell cannot reproduce, what organelle is not functioning?
Nucleus
Explain, how does circulatory and respiratory systems work together?
Respiratory - inhales O2, exhales CO2
Circulatory - takes O2 to every cell,
brings back CO2 back to the lungs to be exhaled
A student is conducting an experiment to determine how different amounts of fertilizer affect the growth of sunflower plants. In the experiment testing the effects of different amounts of fertilizer on sunflower growth, which factor is the dependent variable?
the growth of the plant depends on the amounts of fertilizer applied
What is the order of states of matter from least dense to most dense?
How do you soundproof your room?
Carpet on the floor (or walls)
Cork pannels
Wall paper
Blinds, Curtains, Furniture
What question was not included in the cell theory?
origin and nature of the 1st cell
Explain, how muscular and skeletal systems work together
Muscular -contracts and relaxes pulling skeletal system to create movement
Skeletal surves as a frame for muscular
Sarah wants to investigate how different heating times affect the popping rate of popcorn kernels in a microwave. She places three batches of kernels in the microwave for varying times: Batch A for 1 minute, Batch B for 2 minutes, and Batch C for 3 minutes. What is the independent variable in Sarah's experiment?
The time Sarah set for each batch.
What determines the temperature of an object
EITHER: Movement/speed of particles OR level of Kinetic energy
Explain the process that produces echo
Sound is produced by the source (vocal cords example)
Most of the sound bounces of the surface
Some gets absorbed by the material (mountains, walls)
How will you feel if mitochondria is not working properly?
Tired, Sloggish
Explain, how nervous, muscular, respiratory systems work together
Nervous - sends signal via motor nerves for diaphram to contract/relax
diaphram is a muscle that makes lung inhale and exhale