Kaleb OMaddie BTalon HHolly NWesley A Olivia S Jay EElaf DNoah ELauren BIsaac DGozeila B Carter...

Kaleb O Maddie B Talon H Holly N Wesley A

Olivia S

Jay E Elaf D Noah E Lauren B Isaac D Gozeila B

Carter E Bergen B Mark R Taylor P Elliot B Mackenzie E

Caleb H Ty R Alexus B Alex K Jack F

Nathan M Jade H Nicolas T Mallory H

Brett S Anna B

Raina K Kaitlyn C Adam H Fern R Jarrett M Kenley C

Alexei L Abuk J Dylan H Megan F Kyle D Carley S

Kristian J Brandon C

Claire W Garrett H Alicia R

Microscope Lab

1. Apply Concepts The adjective compound means “made by the combination of two or more parts.” In a compound microscope, which are the parts that are being combined, and why?

The parts being combined are the objective lens and the eyepiece lens. They make the total magnification for the image in the microscope.

You could also add – stage, slide, light source which combine to form the image or help form the image

2. Compare and Contrast How is the image of an object seen through a high-power objective different from the image seen through a low-power objective?

• Images seen under high-power will be larger and contain more detail

3. Observe How did the position of the e appear to change when it was viewed through the microscope?

• The image of the letter e was upside down and backwards

4. Draw Conclusions You observe an ant through the eyepiece of a microscope. The ant moves toward the bottom of the slide and then it moves to the right. What do these observations tell you about the actual movement of the ant?

• The ant actually went up and left on the slide

5. Form a Hypothesis Why must scientists cut a thin slice from a biological specimen before they can view it under a microscope?

• Light must be able to pass through the specimen

• A coverslip or glass slide would not be able to encase an entire organism

The Methods of ScienceA. Science studies natural patterns

1. Science is classified into three main categories:Life Science

Biology “the study of life”

Many branches of Biology

Earth Science

Physical Science

2. Science explains the natural world; explanations can change over time…for example?

– Science also aims to use those explanations to understand patterns in nature and to make useful predictions about natural events.

– What are some examples of patterns that scientists use to make predictions?

3. Scientists investigate nature by observations, experimentation, or modeling

Science deals only with the natural world.

• Science must be based on evidence, not belief.

• Evidence comes from data and is constantly being re-collected to ensure its validity.

Science, Change, and Uncertainty – Despite all of our scientific knowledge, much of

nature remains a mystery.

– Almost every major scientific discovery raises more questions than it answers. This constant change shows that science continues to advance.

– Learning about science means understanding what we know and what we don’t know.

– Science rarely “proves” anything in absolute terms

– Scientists aim for the best understanding of the natural world that current methods can reveal.

B. Scientific method - organized set of investigation procedures

1. State a problem

2. Gather information

3. Form a hypothesis or educated guess based on knowledge and observation

4. An experiment with variables is a common way to test a hypothesis

• Typically, an experiment is divided into control and experimental groups.

• A control group is the group that’s not being tested (regular group)

• An experimental group is exposed to some kind of experimental conditions

• The thing you use to test your experimental group is called the independent variable

• What results from your independent variable is called the dependent variable

• _________ depends on _____________(Dep.) (Ind)

5. Analyze data from an experiment or investigation

6. Form a conclusion based on data

7. Reduce bias by keeping accurate records, using measurable data, and repeating the experiment