Experiment 14.2 How Anthocyanin and pH Help Determine Leaf Color

boiled red cabbage to make an indicator solution.

then used vinegar and ammonia to raise and lower pH.  The indicator solution changed color as a result.

Experiment 12.1 Insect Classification

Students were given pictures with their lab sheet and some plastic specimens to classify using the dichotomous key presented,

the key is available for use if anyone would like to explore this further

Experiment 11.3 Observation of a Planarian

observe as example from phylum Platyhelminthes

Experiment 11.2 Observation of a Hydra

Observe Hydra as typical member of phylum Cnidaria.

Experiment 10.1 Carbon DIoxide and the greenhouse Effect

We had an inverse result on this one.  I believe our in and out sun affected it.  We will redo this experiment in a future class.

Experiment 8.3 Environmental Factorand its effect on Radish Leaf color

I planted these and photographed daily for the students.  They filled in their charts and found that a lack of light does affect the color of the leaves.  The cotyledons need light to develop the green color.

Experiment 5.2 The Fragility of an Enzyme

The group worked on the prep and observation of this together. After trying to blend the pineapple with a wooden spoon in the blender failed (HA!), they managed to get everything done.  The bowls were placed in the fridge to set while we worked in some other areas.
The 3 bowls were:
pineapple a-cold pineapple  set but loosely
pineapple b- warm pineapple didn't set
no pineapple set fully

The boys proceeded to eat the heated pineapple, jello, and the rest of the experiment.  Guess we haven't reached the "don't eat your science lab experiments" stage yet.