Name ______Period ______

7th Grade Science Tropism Flip Book Unit 8

Directions: You are going to create a quick reference chart for the various types of Tropism . Tropism is a term that refers to how an organism grows due to an external stimulus. For each type of tropism, you will need to provide a definition and a picture/example of that type of tropism. Below is a list of terms that you will include in your “Flip Book”.

Flip Book Terms: Internal Stimuli External Stimuli Gravitropism Phototropism Geotropism Hydrotropism Thigmatropism

How Do You Create a Flip Book? Step 1: Obtain 4 half sheets of paper. Stack the sheets of paper on top of each other. They should be staggered about a 2 cm. See the picture below.

2 cm

2 cm

2 cm

Step 2: Now fold the top half of the 4 pieces of paper forward. Now all of the pieces of paper are staggered 2 cm. You should have 8 tabs. Place two staples at the very top. Staples

Tab #1

Tab #2

Tab #3

Tab #4

Tab #5

Tab #6

Tab #7

Tab #8

Step 3: On the very top tab (Tab #1) you are going to write/draw the words " Tropism Flip Book ". You may use markers or colored pencils throughout this project to color and decorate your flip book. Also write your name and period. See the example below.

Tropism

Flip Book Your Name Period

Step 4: At the bottom of each tab you are going to write each of the flip book terms (Internal Stimuli, External Stimuli, Gravitropism, Phototropism, Geotropism, Hydrotropism, and Thigmatropism ). Just above the term, provide a definition for that term. On the flap above, create an illustration that represents the term. See the examples below.

Examples

Something on the inside of an organism that causes a response. Something on the outside of an organism that causes a response. Internal Stimuli

External Stimuli External Stimuli

Gravitropism Gravitropism

Phototropism Phototropism

Geotropism Geotropism

Hydro tropism Hydro tropism

Thigmatro psim Thigma tropism

Step 5: Complete the rest of the tabs in the same way that you did the “Internal Stimuli" tab. Use the Glossary on the following page to obtain the definitions for each term.

Tropism Glossary Internal Stimuli – Something on the inside of an organism that causes a response.

External Stimuli – Something on the outside of an organism that causes a response.

Gravitropism - The way a plant grows or bends in response to gravity; when a plant grows up and the roots grow down.

Phototropism - The way a plant grows or bends in response to light; when a plant bends to grow toward the sun.

Geotropism – A synonym for gravitropism: the way a plant grows or bends in response to gravity.

Hydrotropism - The way a plant grows or bends in response to water; when a plant’s roots grow towards a water source.

Thigmatropism - The way a plant grows or bends in response to touch; when a plant wraps around an object that it is growing next to.

Tropism Picture Examples Gravitropism/Geotropism Phototropism

Hydrotropism Thigmatropism

Water