Chapter 1 Section 3 Tools Of Life Scientists

Look at page 19 and tell me what the objectives are (What you’ll do)

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Look at the image to the right. What type of microscope is shown?_____________________

List the parts listed in the book that this microscope has. HINT - This is should have helped

you tell which microscope it is. _______________________________________________________________

How do electron microscopes work?____________________________________________________________________________

Name and describe the two types of electron microscopes mentioned in the book. ________________________________________________________________________________________________________________________________________________________________

___________ are used to see internal structures of organisms

How does a computed tomography scan (CT scans) work? __________________________________________________________________________________________________________How does a Magnetic resonance imaging (MRI) work? ________________________________________________________________________________

NOTE **Both Ct scans and MRI provide clearer and more detailed imaging than X-ray The image on the left is a computerized axial tomography scan (CAT scan). The image on the right was made withmagnetic resonance imagery (MRI).

Explain how life scientists use computers. ________________________________________________________________________________________________________________________________________________________________

What was one of the problems associated with standardized units of measurement?______________________________________________________________________________THINK - If you were buying lengths of rope who “feet” would you want to use? Your own or LeBron James’ “feet”?

What is the most used form of measurement around the world and with scientists?_______________________________________

What are the most commonly used SI units for the items below:

Length ______________________Volume ______________________Mass ________________________Temperature __________________

Metric Rap You Tube 3min

What do the following prefixes mean?Kilo ____________________________________Deci ___________________________________Centi __________________________________Milli ___________________________________Micro __________________________________Nano ___________________________________

It is important to use the correct scale of size. What Would you use to measure…A grasshopper? _____________________A teenage boy? _____________________

Define area. ________________________________________________________________________What is the formula for area? __________________________________________________________What are the units for area called? _____________For example: m2, km2, ft2

Skip owns a skateboard shop. He would like to replace the wood flooring in the showroom area of his shop. The shop measures 40 ft long by 30 ft wide, how much flooring will he need? Complete math here:

Define volume: ___________________________________________________________________What is the formula to find the volume of a cube (or other rectangular object)?_________________________________________________________________

What is the volume of a fish tank that measures 1.5 m height, 1 m length, and 0.5 m wide? Show work here:

What is one way to figure out the volume of an irregularly shaped object? __________________________________

Define mass____________________________________________________________________________________________________________We measure mass on Earth usually by weight soooo mass and weight are often compared HOWEVER! If we moved me (my mass) to the moon where the pull of gravity is less I weigh less but in reality is there less of me? _____________________________________________________________________

Define temperature ___________________________________________________________________________________________________________________Volume, mass, and weight 1min

Before you conduct a lab always read the_________!Often they come with safety symbols, here are the most common ones label them:

Eye Protection

Chemical Safety

Heating Safety

Animal Safety

Electric Safety

Clothing Protection

Plant Safety

Sharp Object

Hand Safety