Scientific Method
Human Body Balance
Digestive System
Excretory System
Y8 Science Program
100

All research should start with...

A problem

100

How do you define homeostasis in the human body system?

A self-regulating process by which biological systems maintain stability while adjusting to changing external conditions

100

What are the main organ groups of the digestive system and the examples from each?

Alimentary tract/hollow organs: esophagus, gut, etc
Accessory organs/solid organs: liver, pancreas, etc

100

Why is the right kidney is smaller and located lower compared to the left one?

Because there's liver that is located right above it

100

What is the special class for this term's Science?

Expert guest speaker session

200

What are the main elements/chapters of an ideal experiment report?

Research questions, hypotheses, introduction, materials, steps, variables, data, discussion, conclusion, appendix/pictures

200

How do you differentiate the negative and positive feedback loops in the human body system?

Negative feedback loops lower/negate the harmful effects while the positive ones amplify/add more damage

Body gives signal if we're hungry to eat so that we won't be hungry anymore

200

How do you define enzyme?

A substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction, such as breaking down large molecules to smaller ones or building big ones from smaller components

200

How do you differentiate between ureter and urethra?

Ureter is the channel between the kidneys and the bladder, urethra is the channel to discharge urine away

200

How much are the final score percentages covered by your term 1 formative and summative assessments?

Formative assessment: 30%

Summative assessment: 35%

300

What is the main difference between research questions and hypotheses?

Students describe their answers

300

Why is addiction is an example of a positive feedback loop?

Since it amplifies the harmful effects such as damage to the human body system instead of lowering them down 

300

What are the main regions of the small intestine?

Duodenum, jejunum, ileum

300

What is the difference between urinary system and excretory system?

Urinary system consists only urine-producing organ system (kidney, urethra, ureter, etc)
Excretory system consists of all waste-removing systems

300

Which weeks are our formative and summative assessment starting points?

Formative assessment: week 4 (August 22-26)

Summative assessment: week 6 (September 5-9)

400

What are the three types of variables?

Independent variables: Things/values you change in an experiment
Dependent variables: Things/values that are the results of changes in the independent variables
Controlled variables: Things/ values that are kept the same in an experiment

400

Why macronutrients are so important?

Because they provide building blocks to build the human body itself, provide energy to make it functions properly, and help it fights diseases
Examples: carbohydrates, fat, and protein

400

What are the five steps of digestion?

Ingestion, digestion, absorption, assimilation, elimination

400

What is the importance of the BUN test?

To know the urea nitrogen level in our blood. Urea nitrogen is the waste product of blood filtration by the kidneys and should be low.

400

How many effective weeks do we have for term 1 and 2's Science?

Term 1: 9 weeks
Term 2: 7 weeks

500

What the examples of the three types of variables?

Students describe their answers

500

Why is it so important to calculate our calorie intake?

The amount of energy in an item of food or drink is measured in calories. When we eat and drink more calories than we use up, our bodies store the excess as body fat. If this continues, over time we may put on weight.

500

Create an analogy of each stage of digestion!

Students describe their answers

500

Describe the three processes of filtrate production/blood filtration in the kidney!

filtration in the glomerulus, selective reabsorption in the renal tubules, and finally excretion

500
How do you describe the material of our guest speaker session?

Nutrition, calorie intake, and impacts of diet to the digestive system and the environment

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