The Scientific Method
Which of these shows the correct order of the steps in the scientific message?
a) state a hypothesis, collect materials, perform the experiment, ask a question, collect the data, state a conclusion
b) ask a question, state a hypothesis, collect materials, perform the experiment, collect data, state a conclusion
c) ask a question, state a conclusion, collect materials, state a hypothesis, perform the experiment, collect data
d) state a conclusion, collect data, perform the experiment, collect materials, state a hypothesis, ask a question
b) ask a question, state a hypothesis, collect materials, perform the experiment, collect data, state a conclusion
In this experiment which was the primary sense used to collect data?
a) hearing
b) sight
c) smell
d) taste
b) sight
What would be the variable you observed in the Ketchup Cartesian Diver?
a) squeezing and releasing the bottle
b) the size of the ketchup packet
c) the amount of water in the bottle
d) the size of the bottle
a) squeezing and releasing the bottle
In the experiment we just did, which scientific principles are explored?
a) Reflection
b) Cohesion Tension
c) Density and Buoyancy
d) Refraction
c) Density and Buoyancy
In the experiment we just viewed, which of these might be the question asked?
a) How are ketchup packets made?
b) What happens when you squeeze a ketchup packet?
c) What will happen when a ketchup packet is placed in a bottle of water?
d) What happens to water when you empty a ketchup packet into it?
c) What will happen when a ketchup packet is placed in a bottle of water?
When it is time to place the ketchup packet in the bottle, what is true of the bottle?
a) the bottle is empty
b) the bottle has a small amount of water
c) the bottle is half full
d) the bottle is full of water
d) the bottle is full of water
What is the ability or tendency to float?
a) lightness
b) buoyancy
c) pressure
d) density
b) buoyancy
Which principle explains why the ketchup packet float when placed in the bottle of water?
a) buoyancy
b) reflection
c) cohesion tension
d) refraction
a) buoyancy
What materials would you need to perform the Ketchup Cartesian Diver Experiment?
a) water, bottle with lid, packet of ketchup
b) water, ketchup, scissor
c) ketchup packet, empty bottle
d) water, bottle, oil
a) water, bottle with lid, packet of ketchup
When the ketchup packet is placed in the bottle filled with water, what happens?
a) nothing
b) the ketchup packet is suspended in the center of the bottle
c) the ketchup packet floats
d) the ketchup packet sinks
c) the ketchup packet floats
Which word means a scientific procedure undertaken to make a discovery, test a hypothesis or demonstrate a known fact?
a) question
b) hypothesis
c) experiment
d) conclusion
c) experiment
Why is the packet of ketchup buoyant in the bottle of water?
a) the ketchup is heavier than the water
b) the ketchup packet has no air sealed inside
c) the ketchup packet has a bubble of air sealed inside
d) no one knows the reason
c) the ketchup packet has a bubble of air sealed inside
I see that the ketchup packet floats in the water and then sinks when the bottle is squeezed. Which step in the scientific method would be represented here?
a) collect materials
b) ask a question
c) state a hypothesis
d) collect data by observation
d) collect data by observation
When the bottle of water with the ketchup packet inside is sealed with the cap and squeezed, what happens?
a) nothing
b) the ketchup packet is suspended in the center of the bottle
c) the ketchup packet floats
d) the ketchup packet sinks
d) the ketchup packet sinks
Which word means a supposition or proposed explanation?
a) question
b) hypothesis
c) experiment
d) conclusion
b) hypothesis
Which of these is a true statement?
a) water compresses easier than air
b) air and water compress equally
c) air compresses easier than water
c) air compresses easier than water
What should a scientist do to find out why the ketchup floats in water but then sinks when the bottle is squeezed?
a) collect materials
b) do some research
c) state a hypothesis
d) state the conclusion
b) do some research
After squeezing the water bottle, the scientist stops squeezing the bottle. What happens?
a) nothing
b) the ketchup packet is suspended in the center of the bottle
c) the ketchup packet floats
d) the ketchup packet sinks
c) the ketchup packet floats
What is the scientific word that means the mass per volume of a substance?
a) heaviness
b) buoyancy
c) weight
d) density
d) density
Why does the packet of ketchup sink when the water bottle is squeezed?
a) the density of the air in the packet decreases because the volume is decreasing
b) the density of the air in the packet increases because the volume is increasing
c) the density of the air in the packet decreases because the volume is increasing
d) the density of the air in the packet increases because the volume is decreasing
d) the density of the air in the packet increases because the volume is decreasing