FIELD TRIP RECAP! Sam Houston Ship Channel Boat Tour Last Organic Outpost Farm Allen’s Landing.

FIELD TRIP RECAP!

Sam Houston Ship Channel Boat Tour

Last Organic Outpost Farm

Allen’s Landing

WATER QUALITY TESTING LAB

Monday sample

Wed’s sample

upstream downstrea

m

Dissolved Oxygen, pH,

nitrates, phosphates

3 trials

Kits and procedures

WATER QUALITY TESTS

Test Pollutant Source effect

Nitrates/phosphates Fertilizers, sewage Yards, farms, sewage treatment plants

eutrophication/ low oxygen

pH Acids or bases Yards, streets, factories

Organisms can’t survive

Turbidity Extra floating dirt Construction, yards, farms

Plants can’t photosynthesize

WATER QUALITY TESTS

Dissolved Oxygen – a GOOD THING!!!! More DO = more aquatic life (more cellular

respiration) Minimum amount: 4ppm for fish to live

TIME TO WRITE THE HYPOTHESIS!

If (independent variable) THEN (dependent variable)

LAB TESTING GROUPS:

Make sure entire first page is complete – 5 minutes!

COMPILE CLASS DATA

13 Was your hypothesis supported or refuted?

PICK UP YOUR INTERACTIVE NOTEBOOK

Complete analysis on your own. Major Grade Complete SentenceS!