Question 1: Fill in the blanks. i. All organisms are made up of units called .
ii. The produce energy for the cell.
iii. The coloured part of the eye is called .
iv. cells are smallest cells in the body.
v. Potential energy means energy.
vi. The covers the eye and protect them from damage.
vii. The nucleus contains the substance called .
viii. DNA stands for
ix. Sound cannot travel through .
x. Nerve cell carries around the body.
xi. are the largest cells in the body.
xii. A group of different tissues is called a .
xiii. The organelles which make protein for the cells are called .
xiv. is the ability to cause something to happen.
xv. Energy cannot be created nor .

Question 2: The following are descriptions of parts of the eye. Can you name each of the parts described?
i. The coloured part of the eye
ii. Gets bigger in dim light, and gets smaller in bright light.
iii. A transparent layer in front of the eye ball.
iv. Changing shape during focusing.
v. A hole in the iris.
vi. Hold the lens in place.
vii. A layer of light sensitive cells.
viii. A nerve connecting the eye to the brain.