Show:
Density and Chemistry
Elements and Compounds
Earth and Space
Force and Motion
Energy and Resources
100
What is the equation for calculating the DENSITY of an object?
100

Which are brittle (break easily): metals or non-metals?

Non-metals
100

This diagram shows the formation process of a certain type of rock. Which type?

Sedimentary rock! (formed when other kinds of rock are eroded and then pressed and cemented together)
100

At point W, what type of energy is at its highest?

Potential energy (stored energy). 


How could we make the potential energy even greater?

100

What would be the biggest benefit of replacing a coal factory with a wind farm. 

The air pollution would decrease. 
200

What is the VOLUME of the hammer?

4 mL or 4 cm3

200

Name each as an ELEMENT or COMPOUND:

C 

C2

CO2

C and C2 are elements (only one TYPE of atom). 

CO2 is a compound (2 or more TYPES of atoms)

200

Why is space often called a "vacuum"?

The lack of air pressure! There is little to no air pressure, which is why astronauts have to wear pressurized suits to maintain blood flow. 
200

If the force of friction is 5N, what force would the man have to pull with in order to move the block?

Anything greater than 5N
200

Why is a frying pan made of a metal bottom and non-metal handle?

Metals are good conductors of heat, while non-metals are not good conductors of heat. 
300

What is the MASS of this block of aluminum?

192 grams
300

Which model shows the basic particle of an element?

He (1 atom)
300

Which two tectonic plates are made up ENTIRELY of water?

Pacific Plate

Nazca Plate


300
Which graphs represent an object moving FORWARD at a CONSTANT (steady) speed?
B and F
300

Describe the energy transformation in this fan. 

Electrical to mechanical
400

Physical change or chemical change?

Changes in state of matter (solid, liquid, gas) are PHYSICAL changes. 
400

Is water (H2O) an element or compound?

A compound
400


What mineral is scratched by apatite but can scratch calcite?


Fluorite
400

Describe the car's motion at interval D.

Steady Position (not moving)
400

Why are metal wires used in the circuit to light up the lightbulb?

Metal wires are good conductors and carry electricity well. 
500

Mass = 10 g

Volume = 2 mL (2cm3)

What is the density of the object?

5 g/mL (or 5 g/cm3)

500
CO vs Co... what's the difference?
CO is a compound (C and O) and Co is an element (can be found on the periodic table). 
500
What is the force that holds all of the solar system in place?
Gravity
500

Does this man have potential energy? How about kinetic energy?

Potential energy (stored up). No kinetic energy (not moving). 
500
What are all living things made up of?