Acids and Alkalis
A substance with a ph of 6 or less is...
What is an acid
Name the female gamete for humans
Egg (accept ovum)
Sound is this type of wave.
longitudinal wave
Light is this type of wave.
Transverse.
This is the smallest unit of matter.
Atom
Name a common indicator
Litmus paper, universal indicator (can accept red cabbage).
Name the male gamete for humans
sperm
The range of human hearing is...
20 Hz to 20,000 Hz (20 kHz)
These colours make up the spectrum of white light
ROYGBIV
This is the control centre of the cell.
Nucleus
When an acid reacts with an alkali, it is called this...
A neutralisation reaction.
Sperm is produced in this part of the male reproductive system
Testes
Sound travels the fastest in this medium.
solids
The is occurs when light passes through a more or less dense medium
Refraction (light changes speed/direction)
What is the phase change called where a solid turns straight to a gas?
sublimation
State the products of a reaction between an Acid and a Metal
a Salt + Hydrogen
What is the process called where an egg is released?
Ovulation
Unlike light, sound cannot travel through this...
a vacuum (accept space)
Name the three secondary colours.
Cyan, magenta, and yellow (in any order)
State the chemical formula for Magnesium Oxide
MgO
What is produced when an acid reacts with an alkali?
Salt + water
Fertilisation occurs in this part of the female reproductive system.
Fallopian tube (oviduct)
This is responsible for the pitch of a sound.
Frequency
State the law of reflection.
The angle of incidence is equal to the angle of reflection.
What is the dependent variable in an experiment?
The variable you measure