Science exam S1 y8 Flashcards
Chemists use symbols to identify each element. They use…
1-2 letters to show the symbol
What element is the symbol of K
Potassium
Chloroplasts are found in
plants above the ground
cells are the building blocks of….
Plants and animals
The law of energy
cannot be created or destroyed
non metals have…
-low = lustre
-no = electrical conductivity
-low = density
-low boiling point
Metalloids have…
- moderately high = lustre
- low = electrical conductivity
- medium = density
- very high = boiling point
Metals have…
- high = lustre
- high = electrical conductivity
-high = density - high = boiling point
Atomic number is the same as..
The elections and protons
Cell membrane helps to…
protect the cell
Cell wall
Provides support
Cytoplasm
keeps organelles together
Vacuole
stores water
Nucleus
provides instructions
Chloroplast
produces energy
Mitochondria
Provides energy
The law of conservation energy is…
Energy can not be destroyed or created
Heat is…
being hot
temperature is…
the intensity of heat in a substance
conduction is…
When the heat of the object transferes through to another objects through contact
convention is…
the process of tranferring heat through air or liquid currents
radiation is…
the flow of heat between objects that are not in contact with each other
Energy is…
The ability to do work or cause change
Kinetic energy is..
Moving energy
light energy is
Anything with light
Sound energy is…
Anything that gives of noise
Gravitational potential energy is….
Anything above the ground
Elastic energy is….
Anything stretched
Chemical energy is…
Anything with stored energy
Independent variable is…
The one changed