Forces & Matter
Force, Pressure & Microorganisms
97.1%
NCERT coverage
23
Direct matches
10
Semi matches
13
Sensors used
14
Chapters
Sensors used in Class 8
Crop Production and Management
Agricultural practices, irrigation, crop types, soil preparation
1
activities
Soil Study
Test soil properties — pH, moisture, temperature for crop management
Microorganisms: Friend and Foe / The Invisible Living World
Bacteria, fungi, viruses, useful/harmful microorganisms, fermentation
2
activities
Yeast Beasts in Action
Measure CO2 from yeast fermentation — microorganism activity
Diffusion: How Fast?
Relates to how microorganisms spread
Mindful Eating / Coal and Petroleum
Food and nutrition, fossil fuels, natural resources, conservation
0
activities
Theoretical chapter on resources and nutrition
Combustion and Flame / Electricity: Magnetic and Heating Effects
Combustion, flame zones, fuels, electromagnets, heating effect of current
3
activities
Endothermic and Exothermic
Measure heat produced in combustion-like reactions
Electromagnets
Build and test electromagnets — magnetic effect of current
Mapping a Magnetic Field
Map field around electromagnet
Conservation of Plants and Animals / Exploring Forces
Biodiversity, deforestation, wildlife, endangered species; also forces
2
activities
Friction
Measure friction force — part of exploring forces
Fun with Pressure
Measure pressure — exploring forces concept
Reproduction in Animals / Pressure, Winds, Storms
Reproduction types, embryo development; also air pressure, weather
2
activities
Fun with Pressure
Measure atmospheric pressure — weather concepts
The Greenhouse Effect
Climate and weather patterns
Reaching the Age of Adolescence / Particulate Nature of Matter
Puberty, hormones; also particle theory, diffusion, states of matter
2
activities
Diffusion: How Fast?
Measure diffusion rate vs temperature — particle motion
Freezing Temperature of Water
Phase transitions — particle arrangement
Force and Pressure
Force, types of forces, pressure, atmospheric pressure, fluid pressure
5
activities
Friction
Measure friction as a contact force
Fun with Pressure
Measure pressure in fluids — Boyle's law intro
First Class Levers
Measure force in lever systems
Pulleys
Measure mechanical advantage of pulleys
Buoyancy
Measure buoyant force in water
Friction / Nature of Matter: Elements, Compounds, Mixtures
Friction types, factors affecting friction; also elements, compounds
2
activities
Friction with Force Sensor
Measure static and kinetic friction on different surfaces
Friction with Sensor Cart (MSV-29B)
Use sensor cart to measure friction forces
Sound / Light: Mirrors and Lenses
Sound production, propagation, characteristics; mirrors, lenses, image formation
4
activities
Speed of Sound
Measure speed of sound — sound propagation
Sound Beats
Visualize sound waves — characteristics of sound
Reflectivity of Light
Measure light reflection — mirrors concept
Light Intensity
Inverse square law — light and distance
Chemical Effects of Electric Current / Keeping Time with Skies
Electrolysis, electroplating, conductors; also astronomy and timekeeping
2
activities
Conductivity of Solutions
Test which solutions conduct electricity
Ohm's Law
Current flow through conductors
Some Natural Phenomena / How Nature Works in Harmony
Lightning, earthquakes, static electricity; ecosystems
2
activities
Static Charge
Measure static charge — lightning concept
Schoolyard Study
Study local ecosystem — nature in harmony
Light / Earth: A Unique Life-Sustaining Planet
Reflection, refraction, spectrum, human eye; Earth's atmosphere
3
activities
Reflectivity of Light
Measure reflection from different surfaces
Light Intensity
Light behavior — inverse square law
The Greenhouse Effect
Earth's atmosphere trapping heat
The Amazing World of Solutes, Solvents, and Solutions
Solutions, solubility, concentration, saturation
3
activities
A Good Cold Pack
Endothermic dissolution — solute dissolving in solvent
Water Hardness Study
Test dissolved minerals in water — solution concentration
Conductivity of Solutions
Measure conductivity vs concentration
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