chemical and physical change
This is what happens to the mass of substance during a chemical reaction.
What is stay the same/conserved?
This noble gas, found in group 18, is known for its use in glowing signs.
What is Neon?
This transition metal, known for its high thermal and electrical conductivity, is represented by "Cu."
What is Copper?
This system is responsible for transporting oxygen, nutrients, and hormones throughout the body via blood vessels.
What is the circulatory system?
This body system works to break down food into nutrients that can be absorbed and utilized by the body.
What is the digestive system?
In this type of reaction energy is absorbed from the surroundings.
What is an endothermic reaction?
This element, symbolized by "Fe," is a key component of haemoglobin in red blood cells.
What is Iron?
This halogen, symbolized by "I," is commonly used in antiseptics and for thyroid health.
What is Iodine?
This system includes glands that produce hormones, which regulate processes such as growth, metabolism, and reproduction.
What is the endocrine system?
This system plays a crucial role in defending the body against infections and diseases through a network of cells, tissues, and organs.
What is the immune system?
This law states that energy cannot be created or destroyed, only transferred or transformed.
What is the Law of Conservation of Energy?
This element, essential for life and denoted by "C," is the basis for organic chemistry.
What is Carbon?
This element, known for its ability to form oxides and its presence in group 16, is essential for respiration in living organisms.
What is Oxygen?
Two systems work together to allow for movement and locomotion.
What is the musculoskeletal system?
This system includes organs such as the ovaries and testes and is responsible for producing gametes and hormones related to reproduction.
What is the reproductive system?
In this type of change the chemical composition of a substance isn't altered, like melting ice.
What is physical change?
This alkali metal, found in group 1, is known for being highly reactive and is often stored in oil.
What is Sodium?
Discovered by Dmitri Mendeleev, this element, represented by "H," is the lightest and most abundant element in the universe.
What is Hydrogen?
Comprising skin, hair, and nails, this system provides a protective barrier for the body and helps regulate temperature.
What is the integumentary system?
This part of the brain is responsible for regulating balance, coordination, and fine motor skills.
What is the cerebellum?
This process describes the chemical change where a substance combines with oxygen, often releasing energy.
What is combustion?
This radioactive element, represented by "U," is commonly used as fuel in nuclear reactors.
What is Uranium?
This element is named after a country that is famous for their sausages.
What is Germanium?
The respiratory system is primarily responsible for this process, which involves exchanging oxygen and carbon dioxide in the lungs.
What is respiration?
This structure, located at the end of the bronchial tubes, is where oxygen is absorbed into the blood and carbon dioxide is expelled from it.
What are alveoli?