Cells, Muscles
Particles and Separating Mixtures
Forces/Energy
Digestive and Circulatory Systems
Sound/Space
Extra (Not a Category)
100
The part of the cell that controls cell function.
nucleus
100
TEAM PLAY
What are the names of changing state? (6) (200)
100
What force opposes movement?
Friction
100
What is the liquid part of blood called?
Plasma
100
What causes day and night?
Earth's rotation
100
What is happening to an arm when the tricep contracts?
It straightens out
200
The 3 functions of the skeleton
move, provide support, provide protection
200
When you filter a solution of an insoluble mixture and solvent, what is the name for the solid left behind in the filter paper?
residue
200
You want to determine whether a potato crisp or biscuit has more energy and burns them like in the picture. How do you make sure the results are comparable?
Keep volume of water the same, use same mass of fuel, burn to completion or for same time.
200
TEAM PLAY
State the 5 nutrients for humans. (300)
200
Does a sound wave travel fastest in a solid, liquid, or gas?
Solid
200
What are the names of changing state? (6) (200)
Melting
Freezing
Condensation
Evaporation
Sublimation
Deposition
300
Where in a plant would you find cells packed with chloroplasts?
Leaf (Palisade cells)
300
How do you increase the solubility of a substance?
Increase the temperature or change the solvent
300
What is the starting and ending energy store when a car starts from rest?
Chemical -> thermal
300
In the following diagram, how would the oxygen diffuse?
Inside the cell
300
What is the closest star to planet Earth?
The Sun
300
State the 5 nutrients for humans. (300)
Carbohydrates
Proteins
Fats
Minerals
Vitamins
400
How do we better see cells on a slide?
stain them using iodine
400
Calculate the Rf value for the red dye. (Rf=solute movement/solvent movement)
0.6
400
What is the resultant force on the following?
4 N to the right
400
How do you test if a food has starch in it? Give the test and the result.
Use iodine, it will turn blue/black
400
What is the unit we use to measure the pitch of sound?
Hertz
400
Truck Y is removed from the train, turned through 180° and is then replaced between truck X and Z.
How does this affect the train? (400)
Y now repels both X and Z
500
DAILY DOUBLE
What is happening to an arm when the tricep contracts? (100)
500
Using distillation to separate a solution of salt water. What temperature would the thermometer in the diagram read?
100 C
500
A dryer uses 1000 J of energy each second. It transfers into 700 J of thermal energy, 200 J of kinetic energy, 100 J of sound energy. What is the efficiency of the dryer? (Efficiency = useful energy/input energyx100)
90%
500
Compare the functions of the small and large intestine.
Small intestine absorbs nutrients. Large intestine absorbs water.
500
DAILY DOUBLE
Truck Y is removed from the train, turned through 180° and is then replaced between truck X and Z.
How does this affect the train? (400)
500
FINAL JEOPARDY
Would someone have a greater mass on Earth (g=10N/kg), the Moon (g=1.6N/kg), Jupiter (g=25N/kg), or Saturn (g=10.5N/kg)?