1. scientific processes scientific processes 2

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3.A scientist hypothesizes the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The independent variable is

A) the incubator

B) the gender of the alligator

C) the male alligators

D) the temperature

What is the difference between an experimental & a control group?

Which question would be the best testable scientific question?

A) How long ago did dinosaurs live on the Earth?B) Does the amount of salt in water affect the temperature at which it boils?C) How many giraffes live in Africa?D) Who made the first microscope?

A scientist hypothesizes the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The dependent variable is

A) the incubatorB) the size of the baby alligatorsC) the gender of the baby alligatorsD) the temperature

Scientific Processes Scientific Processes


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7.If you were measuring the mass of a fly, you should use

A) metersB) kilogramsC) litersD) grams

All the things in an experiment that must be the same to make it fair are called

A) controlled experimentsB) controlled variables or constantsC) dependent variablesD) independent variables

In science, an educated guess is called a/an _______.

Which unit of measure is NOT used in the Metric System (International System of Units or SI)?

A) gramsB) centimetersC) millilitersD) inches


Metric Metric

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11On the Celsius temperature scale ___° is water freezing and ____° is boiling water.

Who is responsible for creating the metric system?

Who is responsible for creating the Celsius temperature scale?

What is the mass?

Metric Metric

Metric Metric

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15Prefixes are placed in front of base units to indicate quantities that are larger or smaller than the base unit. Give the symbol and the quantity of the prefix “centi”.

How long is the line?

Use the cm ruler.

Identify the following observations as qualitative or quantitative:

Thor is wearing a red cape.

Thor flew 1500km in the air.

1,000 liters is equal to what unit?

Metric Metric

Metric Metric

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19Water displacement was used to determine that an irregular object had a volume of 27 mL. The mass of the object was 126 grams. What is the density of this object?

Convert 0.379 kilometers to meters. Give the unit name and symbol that is used to measure force.

Water has a density of 1g/mL.

For an object to float in water it density must be ______

For an object to sink in water its density must be _______

Metric Metric

Metric Metric

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23Make an inference & an observation about the picture below:

Identify the following as an observation or inference:

Thor is wearing a red cape.

Thor is a superhero because he is wearing a red cape.

What is the difference between a control group and controlled variables?



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27On a graph you put the ____ variable on the x-axis, and the _____ variable on the y-axis.

Bob, Larry, and Moe collected data on what superhero was the most popular. What type of graph would they use to display their data & why?

The horizontal axis is called the __ axis.

The vertical axis on a graph is called the ____ axis.

Draw & label a graph using the following data:



Monster Goo Drool Splatter

Mass (g) Splatter Size (cm)

Trial 1 Trial 2 Trial 3 Average

28 7.5 8.2 8 7.9

57 14.5 14.3 15.2 14.7

85 24.7 26 25.4 25.4

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31Identify the independent, dependent, and control variables for the following experiment.

It is January in Iceland and Haley, Sarah and Becky are tired of having cold feet while waiting for the school bus to come in the morning. They decide to design an experiment to test the effectiveness of wool, cotton and nylon as insulators. They fill identical bottles with 200 ml of water at 100 C and place inside each sock. They take the temperature of the water after 20 minutes.

What are the base for the following?metric (SI) unitsDistance Mass Volume Temperature Force

What are the three types of relationships a graph can show?

Identify the independent & dependent variables by looking at the graph.



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Draw the speed, distance, time triangle.

Explain how to use it.

An airplane flies 1360 km in 2 hours. What is its average speed in kilometers per hour?

A taxi hurries with a constant speed of 120 km/h. How far can it travel in 1 hour?

Julia roller skates with a constant speed of 20 km/h. How long will she take to travel a distance of 25 kilometers?

Speed & Acceleration




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How much time would it take for the sound of thunder to travel 2000 meters if sound travels a the speed of 330 meters per sec.

An airplane flies 34 km in 33 minutes. What is its average speed in kilometers per hour?

Calculate the average speed (in meters/sec) if a Cheetah runs 140 meters in 5 seconds

How much time would it take for an airplane to reach its destination if it traveled at an average speed of 790 Km/hr for a distance of 5000 kilometers?





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43What is the formula for acceleration?

What is the difference between speed & velocity?

Which of the following is the velocity of Superman?

A. 5000 km/h

B. 5000 km/h west

Does the speedometer of a car read average speed or instantaneous speed? How do you know?





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47What are the three ways you can accelerate?

A car advertisement states that a certain car can accelerate from rest to 70 km/h in 7 seconds. Find the car’s average acceleration.

What two controls on a car cause a change in speed?

What is the average acceleration of a car driven by Bubba if the car goes from 22.0 miles/hour to 74.0 miles/hour in 8.56s?





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51Tom runs 6 miles in 60 minutes. He turns runs another mile in 10 minutes, then walks for 20 minutes and covers another mile. He then runs a further mile in 5 minutes. Draw a distance time graph for this journey

Draw a distance time graph for an otter that swims 100 m in 30 s, before he gets lazy and drifts along 50 m in 20 s. The otter then relaxes on the riverbank for 10 s.

What three controls on a car cause a change in acceleration?

Describe this journey.

Motion Graphs Motion Graphs


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Force Force

Friction Friction

What is the net force? What is the definition of force?

What is the definition of friction?

What type of friction is air resistance?

1. scientific processes scientific processes 2

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