WorksheetsScience Quizbee 3
Total questions: 30
Worksheet time: 15mins
Which of the following is a COMPOUND?
Carbon dioxide (CO₂)
Helium (He)
Iron (Fe)
Oxygen gas (O₂)
Which is a PHYSICAL change?
Burning wood
Freezing water
Rusting iron
Baking bread
Which PLATE BOUNDARY commonly causes strong earthquakes with little volcanism?
Divergent
Convergent (subduction)
Transform
None
Which is a HOMOGENEOUS mixture (solution)?
Vinegar
Oil and water
Sand and water
Granite
Which is a RENEWABLE energy source?
Diesel
Wind
Coal
Natural gas
Which Earth layer is LIQUID?
Inner core
Outer core
Mantle
Crust
A student walks 900 m in 300 s. What is the average speed?
2 m/s
3 m/s
4 m/s
5 m/s
A cart speeds up from 5 m/s to 17 m/s in 6 s. The average acceleration is ______.
1 m/s²
2 m/s²
3 m/s²
4 m/s²
Which gas is a MAJOR greenhouse gas from human activity?
Oxygen
Nitrogen
Carbon dioxide
Argon
Convert 54 km/h to m/s.
12 m/s
14 m/s
15 m/s
18 m/s
How many times MORE acidic is pH 2 than pH 5?
10×
100×
1000×
10,000×
A plate moves at 5 cm/year. How far does it move in 2 million years?
10 km
50 km
100 km
200 km
A constant horizontal force of 40 N moves a cart at a constant speed of 2 m/s. The POWER is ______.
20 W
40 W
60 W
80 W
In a FAIR TEST, you should ______.
change many variables at once
change only the independent variable and keep others controlled
avoid measurements
skip repeats
During an earthquake drill, the safest immediate action is to ______.
run to the stairs
stand near windows
drop, cover, and hold on
use the elevator
Which is a PHYSICAL change?
Burning wood
Freezing water
Rusting iron
Baking a cake
The SI base unit for TEMPERATURE is the _______.
Celsius (°C)
kelvin (K)
Fahrenheit (°F)
Joule (J)
Which Earth layer is LIQUID?
Inner core
Outer core
Mantle
Crust
A cart speeds up from 5 m/s to 17 m/s in 6 s. The average acceleration is ______.
1 m/s²
2 m/s²
3 m/s²
4 m/s²
If 360 J of work is done in 12 s, the POWER is ______.
10 W
20 W
30 W
40 W
A 9-V battery is connected across a 3-Ω resistor. The current is ______.
1 A
2 A
3 A
4 A
OSMOSIS is the movement of water molecules from ______.
higher solute concentration to lower through a semipermeable membrane
lower solute concentration to higher through a semipermeable membrane
higher pressure to lower pressure
lower temperature to higher temperature
Which gas is a MAJOR greenhouse gas from human activity?
Oxygen
Nitrogen
Carbon dioxide
Helium
A rock has mass 96 g and raises water level in a cylinder from 40 mL to 64 mL. Its density is ______.
2 g/mL
3 g/mL
4 g/mL
5 g/mL
Two resistors 6 Ω and 12 Ω are connected in PARALLEL across a 12-V battery. The total current drawn is ______.
1.5 A
3 A
6 A
12 A
In a FAIR TEST, you should ______.
change all variables at once
change only the independent variable and keep others controlled
ignore the dependent variable
not control any variables
Safe way to smell a chemical in the lab is to ______.
inhale deeply over the container
waft vapor toward your nose
sniff directly from the bottle
taste a small amount
The FIRE TRIANGLE consists of ______.
heat, light, carbon dioxide
heat, fuel, oxygen
fuel, water, oxygen
oxygen, nitrogen, heat
If you want to stop a fire, what should you do based on the requirements for combustion?
Add more fuel
Remove one of heat, fuel, or oxygen
Increase the oxygen supply
Make the fire hotter
Covering a fire with a fire blanket is effective because it:
It removes one of the necessary elements for combustion
It cools down the fire instantly
It adds more fuel to the fire
It increases the heat of the fire
