03:49

What to do when you feel stuck on an assignment!

01:34

Why do old towns have cobblestone streets?

03:06

Element vs Compound: Lego Models

04:20

Can’t or Won’t

04:13

Virtual Field Trip: Saturn V

02:36

Video Lab: Design a Rocket

04:09

Video Lab: Bottle Rockets

04:54

What are Compound Machines?

04:18

What are Simple machines?

05:43

What are Chemical Properties?

06:19

What are Physical Properties?

05:08

Industrial Metal Mining & Environment

04:21

How Alchemy led to Chemistry

03:50

Metallurgy: From rocks to alloys

01:13

What made this giant hole in AZ?

07:18

How do we pollute water?

00:42

What caused this mud river in Flagstaff?

06:32

How do we get water?

02:19

Why are beaches growing in Nevada?

01:09

What’s up with this Texas rest stop?

03:06

Video lab: DIY Water Filter

04:29

What is a Pest?

07:23

Why do we use Pesticides?

05:45

Plant reproduction & Seed Dispersal

02:50

What is a fruit or vegetable?

03:48

Artificial Selection

05:10

Video lab: Snack tectonics

03:06

Video lab: Convection

05:09

Mutations part 2

01:19

Take me there Tuesday: Tonto Bridge

10:49

Video lab: Paper Geologic Timeline

01:04

Adventures of Baby Dino

06:50

Chromosome model of sexual reproduction, Punnett Squares and genetic variation

02:14

Puzzle phenomena

08:23

Relative Dating

04:16

Video lab: Earthquake Engineering

04:31

Tips for Comic Strips & Stories

03:58

Video lab: Fossil Dig

05:30

Video lab: Erosion

04:40

Roles, jobs and work on Mars

03:07

Genetic Engineering for Mars

04:26

Adaptations

08:01

Food chains, webs and trophic levels

03:47

Rules & Parts of Game

07:06

Game examples

10:42

Virtual Field Trip: Biosphere 2

06:13

Newton’s Laws in Space Travel

06:03

Newton’s Third Law (action-reaction forces)

03:43

Newton’s First Law (balanced & unbalanced forces)

06:56

Inertia and Safety

04:11

Newton’s Second Law (force, mass & acceleration)

05:53

Closed & Open Systems

03:59

Air Resistance & Terminal Velocity

01:39

Crying on Earth, Space and Mars

04:14

Gravity, Mass & Weight

04:43

Motion, Speed & Velocity

04:32

Factors & Effects Gravity

05:50

What is and isn’t Acceleration?

02:39

Types of Forces

06:40

Factors influencing Friction