Properties of Plastics
100: What are plastics made from?
Polymers
100: What is it called when atoms share electrons?
Covalent bond
100: What do we call the layers where electrons are found in an atom?
Shells or Energy Levels
100: What is a microplastic?
Tiny piece of plastic (less than 5 mm)
100: Which mineral is used to make wires?
Copper
200: What is one reason plastics are used for packaging?
They are lightweight
200: What is it called when electrons are transferred between atoms?
Ionic bond
200: How many electrons fit in the first shell of an atom?
2
200: Where are microplastics found, land or water?
Both
200: Which mineral is used to make cement?
Limestone
300: Which type of plastic can be melted and reshaped many times?
Thermosoftening
300: What type of bond do metals have?
Metallic bond
300: How many electrons are in the second shell of sodium (Na)?
8
300: How can microplastics enter animal bodies?
many ways
300: Which mineral is used in microchips for computers?
Silicon
400: Are plastics generally resistant to water and chemicals?
Yes
400: Which bond is found in salt (NaCl)?
Ionic bond
400: What is the electron configuration for chlorine (Cl), atomic number 17?
2,8,7
400: What happens to microplastics as they travel up the food chain?
They build up in bigger animals
400: Name a mineral used in jewellery.
Gold (or diamond, silver)
500: What type of plastic is used for electrical insulators because it doesn’t melt easily?
Thermosetting
500: What type of atoms are involved in covalent bonds?
Nonmetals
500: what is the electron structure in Chromium CR
Cr 2,8,15
500: Why are microplastics bad for humans?
They can cause health problems after entering our food
500: What is coal mainly used for?
Energy (fuel for electricity)