Definitions I and J Click for each heading then for the answer In no time at all …..you’ll know it all

Insulator Does not allow heat or electricity through (opposite to conductor) E.g Air trapped in double glazed windows (heat) E.g. water under wet suit (heat)

Insulator – electrical Bulb doesn’t light in this circuit E.g. plastic coating on copper cable (electrical insulator)

Incisors Sharp teeth for cutting food At front of mouth

Indicator Chemical that shows By a colour change If a substance is an acid or base E.g. litmus (red  blue = base, blue  red in acid)

Ion A charged atom (Na + ) Or group of atoms (OH - ) Positive ion =atoms give away electrons Negative = atoms accept electrons

Implantation When the developing embryo to The wall of the uterus (womb)

Invertebrates Animals without a backbone e.g. earthworm

Isotopes Atoms of the same element With the same number of protons but different numbers of neutrons (atomic number= same Mass numbers = different) C 12 C 14 – used for carbon dating

Interdependence Plants and animals depend on each other for survival Plants make oxygen, take carbon dioxide Animals make carbon dioxide, take oxygen Plants use animals for pollination and dispersal Animals use plants for food and shelter

Joule Unit of energy (J) Unit of work (J) In food kilojoules are used (kJ)

Joint Where bones meet Fused (skull) Ball & socket (shoulder + hip) Hinge (elbow + knee)

Bone Joint -parts Cartilage for friction free movement Synovial Fluid for friction free movement and shock absorber Synovial membrane keeps syn. Fl. In place Ligament Joins bone to bone

Do I know it?? Insulator Incisors Indicator Ion Ionic Bond Implantation Invertebrates Isotope Interdependence Joule Joint