Which of the following is the factor that is observed and is changed in response to the independent variable? The factor being observed or is measured?

In an experiment, the group that doesn’t receive the factor being tested and is used for comparison. The “normal” group.

A possible explanation that can be tested by further observation or experimentation.

Why do scientists publish their results?

The investigative process that tends to follow a general sequence. It consists of observations, measurements, and experimentation in order to draw valid conclusions.

These are made using your senses like touch, taste, hearing, smelling, and seeing.

When results are evaluated by other scientists conducting the same research or that are in the same field.

Scientists record measurements using the:

A (an) ____________________ is logical guess or interpretation based on prior knowledge.

Detailed records of observations or gathered information that is gathered during an experiment or investigation; can be qualitative or quantitative:

How many variables should be tested at a time?

Which of the following ways would a scientist show his/her results?

A factor that remains fixed during the experiment and is the same for all groups in the experiment.

The group that receives the factor being tested. This group is exposed to the independent variable.

A (an) explanation of a natural phenomenon based on many observations and investigations over time. It is unlikely to change.

The use of evidence to construct testable explanations and predictions of natural phenomena.

What is another name for a constant?

The height of the plant is 50 cm. What type of data is this?

Observing how wolves hunt. What type of data would you be collecting?

She has blue eyes and blonde hair. What type of data is this?

The time it takes to run 2 miles is 40 minutes. What type of data is this?

Experiment 1: Three apple trees are kept at different humidity levels inside a greenhouse for 12 weeks. The heights of the trees are measured once a week. Which of the following is the Independent Variable?

Experiment 1: Three apple trees are kept at different humidity levels inside a greenhouse for 12 weeks. The heights of the trees are measured once a week. Which of the following is the dependent variable?

Experiment 1: Three apple trees are kept at different humidity levels inside a greenhouse for 12 weeks. The heights of the trees are measured once a week. Which of the following is a constant?

Experiment 2: Four groups of rats are weighed and then fed identical diets except each group receives a different amount of Vitamin D. At the end of three weeks, the rats are weighed again to see the effect of the Vitamin D on their weight. Which of the following is the Independent Variable?

Experiment 2: Four groups of rats are weighed and then fed identical diets except each group receives a different amount of Vitamin D. At the end of three weeks, the rats are weighed again to see the effect of the Vitamin D on their weight. Which of the following is the Dependent variable?

Experiment 2: Four groups of rats are weighed and then fed identical diets except each group receives a different amount of Vitamin D. At the end of three weeks, the rats are weighed again to see the effect of the Vitamin D on their weight. Which of the following is a constant?

I am baking brownies, but I want to keep them softer and fresher for longer. I decided to try three different kinds of storage methods to see which one keeps the brownies softer longer. I buy regular Ziploc bags, a plastic Rubbermaid container, and a glass Pyrex container. I cut the brownies the same size and keep them on the counter for a week. After a week, I eat them to see which one stayed the softest.  What is the Independent Variable?

I am baking brownies, but I want to keep them softer and fresher for longer. I decided to try three different kinds of storage methods to see which one keeps the brownies softer longer. I buy regular Ziploc bags, a plastic Rubbermaid container, and a glass Pyrex container. I cut the brownies the same size and keep them on the counter for a week. After a week, I eat them to see which one stayed the softest.  What is the dependent variable?

I am baking brownies, but I want to keep them softer and fresher for longer. I decided to try three different kinds of storage methods to see which one keeps the brownies softer longer. I buy regular Ziploc bags, a plastic Rubbermaid container, and a glass Pyrex container. I cut the brownies the same size and keep them on the counter for a week. After a week, I eat them to see which one stayed the softest.  What is a constant?

The measure of the pull of gravity on the mass of an object is called:

The amount of space an object occupies is known as its:

The amount of matter in an object is called:

If we are using the metric system, what temperature does water boil at?

If we are using the metric system, what temperature does water freeze at?

The metric system is a decimal system based on multiples of?

Why do scientists use the metric system to record measurements?

True or False: If you change too many variables during an experiment, then you won’t know which variable caused the result you get at the end of the experiment.

What is the base unit to measure length?

What is the base unit to measure volume for solids?

What is the base unit to measure volume for liquids?

How is temperature measured in the Metric System?

What is the unit of measurement for mass of large objects?

What is the base unit of measurement for mass?

Scientists use the metric system to show measurements when collecting data because it's a universal system that all scientists know and understand.