Key words: SOLS, adaptation, cactus, desert, C.A.M. plants, water.
| Topic |
Time |
| Intro - |
00:00 |
| Overview of the Desert Botanical Garden. |
01:43 |
| What are succulent plants? |
02:27 |
| How does a saguaro cactus keep keep from losing its water? |
03:51 |
| Can a saguaro cactus live for years without water? |
04:41 |
| How tall is a saguaro cactus after 5 years and how do you know the
age of a saguaro? |
05:24 |
| A brief introduction into photosynthesis. |
06:47 |
| Where does photosynthesis happen? |
08:18 |
| What color of light are plants using for photosynthesis? |
10:02 |
| CAM plants - breathing at night. |
10:52 |
| How do plants move water from their roots up to the top of the
plant? |
13:22 |
| Osmosis |
14:04 |
| Xylem and Phloem and a fun way to remember what each does. |
14:49 |
| Water and its properties - adhesion, cohesion, capillary action. |
16:03 |
| Transpiration. |
16:42 |
| Activity to observe properties of water. |
17:42 |
| Where are the leaves on the saguaro cactus? |
18:18 |
| Why do cacti have spines? |
19:13 |
| Plants that have leaves that are not green and why the leaves change
color in the fall? |
19:36 |
| Why do plants go dormant? |
21:06 |
| More about the desert botanical garden. |
22:29 |
| Cacti didn't always look the way they do today? |
23:30 |
| Cacti didn't always look like this? |
24:05 |
| The butterfly pavilion. |
25:18 |
| Migrating
Monarch article and coloring
page. |
25:49 |
| What's special about the DBG in the winter time - and
also summer flashlight tours. |
26:12 |
| Three questions - when did you first know you wanted to be a
biologist? |
27:20 |
| What would you be or do if your were not a biologist? |
27:57 |
| What advice do you have for someone wanting to be a biologist? |
28:47 |
| Sign-off |
29:20 |
