Particles, substances and mixtures
Which state of matter has particles that are touching and in an ordered arrangement?
Solid
What force resists movement?
Friction
What type of cell are humans made of?
Animal cells
Which method of separation can we use to separate sand and water?
Filtration
What 3 sciences do we learn in school?
Biology, chemistry, physics
In which state of matter do particles move the fastest?
Gas
What unit are forces measured in?
Newtons
Where is the DNA in the cell?
Nucleus
What is a dependent variable?
The variable that you measure
Does light or sound travel faster?
Light travels faster
What do we call the process where we change a gas to a liquid?
Condensation
If an object is moving at a steady speed the forces are........
Balanced
What 3 organelles do plant cells have that animal cells do not?
Vacuole, cell wall, chloroplasts
What is a saturated solution?
A solution where no more solute can dissolve
What is the biggest animal in the world?
Blue Whale
What is difference between boiling and evaporation?
Boiling happens when a liquid is heated and happens through the whole liquid. Evaporation can happen at any temperature and only happens at the surface of the temperature.
There are two forces acting on a car. The thrust force is acting to the right at 750N. The frictional force is acting at 300N. What is the size and direction of the resultant force?
450N to the right
What is the total magnification with an objective lens of 10x and an eyepiece lens of 10x
100x
Which property allows physical substances to be separated by distillation?
Boiling point
Where is the smallest bone in your body?
Ear
What do we call the process in which a solid turns into a gas?
Sublimation
What term do we use for the force per unit of area?
Pressure
Give me one adaptation of palisade cells.
What do we use chromatography to separate? Which substance will go travel the furthest in this technique?
Chromatography separates mixtures containing more than one solute. The more soluble the solute, the further it will travel on the paper.
Name all 8 planets
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune