cells
What is the "brain" of a cell?
The nucleus!
What is the centre of an atom?
The nucleus.
What poles are there?
South and North pole
What are the 2 circuits called?
parallel and series circuit.
What does bonding do?
bonding is when an atom shares, gives or takes electrons.
What's one thing a plant cell has that an animal cell doesn't have?
A cell wall
larger vacuole
chloroplast
cytoplasm
What is the atom model we learnt about?
The bohr model.
What is the invisible force called around a magnet?
A magnetic field.
How many electrical path ways does a series circuit have?
There is 1 electrical path way on a series circuit.
What are the 3 types of bonding?
Ionic, metallic and Covalent bonding.
What stores the waste products of a cell?
The vacuole.
Where are the protons and electrons located?
The nucleus.
When opposite poles face together, they repel. True or false?
False, Magnets with opposite poles facing together attract.
How many electrical path ways does a parallel circuit have?
A parellel circuit has 2 electrical path ways.
Why do atoms bond?
Atoms bond to have a more stable electronic configuration.
What is the function of the cell membrane?
Acts as a barrier, protecting the cell's boundaries and controlling what substances goes in and out.
What are atoms?
The basic building blocks of everything.
How do magnetic fields travel?
They travel from north to south pole.
What is ohms law?
Resistance equals voltage divide current. (R= V/I
true or false? Non-metallic bonding can be for metallic atoms as well.
False, metallic atoms usually bond in the ionic bonding category.
What is the main function of the endoplasmic reticulum/ ER?
The function of the endoplasmic reticulum transports proteins, protein folding and calcium storage.
How many electrons should be on the first valence shell?
There should be 2 electrons on the first valence shell.
What are the materials we need to build electromagnets?
Coil of wire, battery/cell and a nail.
What is the electrons moving around a circuit called?
It is called a current. (Flow of electrons).
What is covalent bonding?
A covalent bond is a chemical bond that involves the sharing of electrons to form electron pairs between atoms.