Which part of the atom is negatively charged?
electron
What is the difference between a producer and a consumer in a food chain?
Producers make food; consumers eat other organisms
What is NaCl the chemical formula for?
Salt
Which organ filters waste products from the blood?
Kidneys
Name the organ where gas exchange occurs in humans.
Lungs
What are the three subatomic particles found in an atom?
proton, neutron, electron
What is the green pigment in plants called?
Chlorophyll
What type of bond is formed when atoms share electrons?
Covalent bond
Which group of elements in the periodic table are known as noble gases?
Group 18 (or Group 8)
What is the name of the process where a liquid changes to gas?
Evaporation
What is the chemical formula for carbon monoxide?
CO
Which part of the plant absorbs water and minerals?
Roots
What process releases energy from glucose in cells?
Respiration
What is the main function of red blood cells?
Transport oxygen
What type of bond is formed when atoms lose or gain electrons?
Ionic bond
Which organ in the human body pumps blood?
Heart <3
Which gas is released when acids react with metals?
Hydrogen
What type of blood cells help fight diseases?
White blood cells
What is the difference between an element and a mixture?
Element → one kind of atom; Mixture → two or more substances not chemically combined.
What is happening when diaphragm is contracting?
Breating in