Safety in the Lab | Chemical Reactions | Reproduction | Particles and Solutions | Electricity |
---|---|---|---|---|
What must students with long hair do in the lab?
Use a hair tie to tie back hair
|
What is the sign of a chemical reaction?
a new substance has been made
|
What is a growth spurt?
a time of rapid growth
|
What is a liquid?
particles vibrate and are close together, yet can move about. As the particles are always moving they are not in a regular pattern
|
What is an ammeter?
measures the current in the wires
|
What is the correct procedure for using a bunsen burner?
light the match first then turn on the gas
|
How do you test for hydrogen?
You will hear a pop sound when testing with a lighted splint
|
What is puberty?
the first part of adolescence
|
What is diffusion?
the spreading out of gas particles.
|
What is a series circuit?
lamps are arranged side by side in the same loop
|
What must you do if chemicals are squirted in the eye?
use the eye bath
|
How do you test for oxygen?
A glowing splint will relight
|
How long does the menstrual cycle last?
About 28 days
|
What is chromatography?
the process used to separate different mixtures, dyes and inks.
|
How do you find a fault in a circuit?
test each part of the circuit
|
Where must bags be kept?
under your desk
|
How do you test for carbon dioxide?
When bubbling it through limewater, the limewater will turn cloudy/ milky
|
What are non-identical twins?
Are produced if two eggs are released at the same time. Each egg is then fertilised by a a different sperm.
|
What is distillation?
a method used to separate the solvent from a solution or to separate mixtures of liquids, with different boiling points?
|
What is a parallel circuit?
lamps are placed in different loops in the circuit
|
What must you always give to your science teacher?
chocolate cake
|
How are oxides made?
They are produced during burning
|
What are contractions?
when the strong muscles of the uterus wall squeeze and try to push the baby out.
|
When do particles vibrate more?
when exposed to higher temperatures
|
What is resistance?
makes it harder for the current to flow
|