mph Flashcards
What is the scientific method?
A systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.
True or False: The theory of evolution is widely accepted in the scientific community.
True
Fill in the blank: The basic unit of life is called a ______.
cell
What is the formula for photosynthesis?
6CO2 + 6H2O + light energy → C6H12O6 + 6O2
Which organelle is known as the powerhouse of the cell?
Mitochondria
What is the pH range of acidic solutions?
0 to 7
True or False: Water is a compound.
True
What are the three states of matter?
Solid, liquid, gas
Multiple Choice: Which of the following is not a renewable resource? A) Solar B) Wind C) Coal D) Hydropower
C) Coal
What is the primary gas responsible for climate change?
Carbon dioxide (CO2)
Fill in the blank: The process by which plants convert sunlight into chemical energy is called ______.
photosynthesis
What is Newton’s second law of motion?
Force equals mass times acceleration (F=ma).
True or False: Electrons have a positive charge.
False
What is the study of living organisms called?
Biology
Multiple Choice: Which scientist proposed the law of universal gravitation? A) Albert Einstein B) Isaac Newton C) Galileo Galilei D) Charles Darwin
B) Isaac Newton
What is the most abundant gas in the Earth’s atmosphere?
Nitrogen
Fill in the blank: The ______ is the basic unit of heredity.
gene
What is the main purpose of the scientific community’s peer review process?
To ensure the quality and validity of scientific research.
True or False: All scientific theories are considered facts.
False
What is the term for a substance that cannot be broken down into simpler substances?
Element
What is the key component of DNA?
Nucleotides
Multiple Choice: What is the primary source of energy for Earth? A) The Moon B) The Sun C) Wind D) Geothermal
B) The Sun
What is the law of conservation of mass?
Mass is neither created nor destroyed in a chemical reaction.
Fill in the blank: The ______ is a measure of the average kinetic energy of particles in a substance.
temperature
