Activity 1 Directions:
- Cut a
piece of filter paper 1cm x 10cm.
1cm from the bottom end and draw a line with a pencil.
the black overhead marker, make a dot on the pencil line.
the filter paper over a pencil so that the water in the beaker is below
the line. Refer to the teacher demo.
the paper to sit in the water for about 5-8 minutes. Record the time in
your data table.
some qualitative observations in your data table.
complete, remove the paper from the beaker and allow to
dry. While this is drying,
set up activity 2.
the paper is dry, use a ruler to measure the distance of each color from
the starting line. Record in data
- Draw a
copy of your paper to be turned in.
Teacher Demo: Activity 2 Directions:
step 1 from activity 1.
step 2 from activity 1.
a leaf and a coin, transfer some chlorophyll pigment from the leaf to the
chromatography paper on the pencil line.
Refer to the teacher demo.
step 4 from activity 1, except you will use chromatography solution, NOT
steps 5, 6, 7, 8, and 9 from activity 1.
Post Lab Questions:
pigment moved the farthest on the papers?
pigment moved the least?
do the distances mean in regards to the size of the pigments?
are pigments? What function do they
have in photosynthesis?
types of pigments are found in plants?
- Why do
plant leaves appear green?
on this activity, why do some plants turn from green to yellow in the fall?
Post lab questions due in journal.