A series of steps used by scientists to solve a problem or answer a question.

Ms. Killian sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable.

Lara sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the dependent variable.

Nico is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent variable is the _____.

When experimenting with the growth of a plant, Paul uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?

On a graph, where is the dependent variable typically placed?

What step is this? --> Stephen predicted that seeds would start to grow faster if an electric current traveled through the soil in which they were planted.

What step is this? --> Susan said, “If I fertilize my geranium plants, they will blossom.”

What step is this? --> Rene grew bacteria from the mouth on special plates in the laboratory.  She placed drops of different mouthwashes on bacteria on each plate.

What step is this? --> Kathy used a survey to determine how many of her classmates were left-handed and how many were right-handed.

What step is this? --> Dana want to know how different are synthetic fibers from natural fibers.

What step is this? --> Jose saw bats catching insects after dark.  He asked, “How do bats find insects in the dark?”

What step is this? --> Justin wondered if dyes could be taken out of plant leaves, flowers, and stems.

What step is this? --> Arjulia soaked six different kinds of seeds in water for 24 hours.  Then she planted the seeds in soil at a depth of 1 cm.  She used the same amount of water, light, and heat for each kind of seed.

What step is this? --> Michael fed different diets to three groups of guinea pigs.  His experiment showed that guinea pigs need vitamin C and protein in their diets.

What step is this? --> Kim’s experiment showed that chicken egg shells were stronger when she gave the hen feed to which extra calcium had been added.

Which of these tools is used for measuring weight/mass?

Which of these tools is used to measure the temperature of liquids and gases?

What is the main unit used when measuring mass?

What is the metric unit for measuring distance?

The abbreviation for ______________________ is cm.

________________________ observations involve information that you can count or measure.

________________________ observations involve qualities or characteristics that can be observed with the senses, but not measured or counted.

Which of the following distances is largest?

What is the length of the shell in millimeters?

What is the difference in centimeter between the lengths of the two leaves?

Approved eye protection devices (such as goggles) are worn in the laboratory...

You are heating a substance in a test tube. Always point the open end of the tube ,,,

Where should bags/backpacks be placed during a lab?

If there is an accident in the lab what should you do?

Who is responsible for lab safety?

You should follow all the lab safety rules while in the lab.