GRAVITY CBC RESOURCE CENTRE
INTEGRATED SCIENCE GRADE 9
SCIENCE LABORATORTY ACTIVITIES
1. MIXTURES, ELEMENTS AND COMPOUNDS
A. Structure of an atom
- Fill in the structure of an atom, the protons, neutrons and electrons
- Classify elements into metal and non-metals
- Place elements on a periodic table model (first 20)
- Draw atomic structure of different elements
B. Metals and alloys
-Demonstrate physical properties of metals
Conductivity, appearance, hardness
- Discuss composition of different alloys
Brass ,stainless steel, bronze, duralumin
- Demonstrate conductivity, malleability, ductility, brittle
- Demonstrate conditions necessary for rusting
Oxygen, moisture
- Prepare oxygen and use it with rusting accelerators to make iron rust during a
laboratory session
- Demonstrate ways of preventing rusting
C. Water hardness
-find out physical properties of water
-differentiate between hard water and soft water
(tap water, distilled water, mineral water, pure rain water)
- Demonstrate softening hard water i.e boiling
- Demonstrate lathering with soap
Use liquid soap drops to a vessel of hardwater and soft water
(number of drops made for complete lathering on vessel walls
2. LIVING THINGS AND THEIR ENVIRONMENT
A. Nutrition in plants
- examine external parts of a leaf using a handlens
- observe internal parts of a leaf using a light microscope
Permanent slide for internal parts of the leaf, chloroplast,
- Prepare temporary slides from dicot stem to view vascular bundle
- Demonstrate conditions necessary for photosynthesis
- Demonstrate products of photosynthesis and by-product
Starch test or oxygen test can be applied.
(glowing splint, iodine solution)
B. Nutrition in animals
- Examine different types of teeth using a handlens
- discuss internal parts using a model
- classify animals based on dentition
- demonstrate digestion and absorption
Digestion -use breakdown of food groups using commercial enzymes (pepsin,
ptyalin, and breakdown of fats by sodium hydrogen carbonate and HCl
Absorption by using sem-ipermiability of visking tubing
Starch penetration verses digested starch
Similar activity for protein
C Reproduction in plants
- Examine parts of a flower, different types
- Identify adaptations of different flowers to different modes of pollination
Wind, insect
- Observe different fruits and seeds, identify their adaptations to different modes of
dispersal
- Classify seeds and fruits based on their dispersal modes
- Discuss importance of dispersal
NOTE; Avoid details of double fertilization,
Avoid details of factors that hinder or promote self-pollination
3. FORCE AND ENERGY
A. Curved mirrors
-observe different types of curved mirrors
Convex, concave, parabolic surfaces
- Identify; centre of curvature, focal length ,radius of curvature, principle focus
- Carry out activities to locate images formed by curved mirrors
- Identify different locations of image
At C , before C, between C and F, between F and P
- Applications of curved mirrors
B. Waves
-Demonstrate generation of a wave
- classify waves
- generate waves and identify different parts of a wave
Wavelength, amplitude ,trough, crest
-numerical calculations in waves
Velocity=wavelength x frequency
-demonstrate characteristics of waves
- relate waves to remote sensing
Electromagnetic waves ,radio waves etc
