Scientific Report
Identify the part of the report shown.
To observe and measure the effects of different exercises on pulse rate.
AIM
Identify factors that need to be kept CONSTANT in the following experiment.
Growing a strawberries using solid fertiliser pellets and fertiliser spray.
Pots
Amount of water and fertiliser
Sunlight exposure
Strawberry plants species
Identify the part of the scientific report shown;
Rust formed on the nail which was in salt solution and did not form on the nail which was immersed in olive oil.
Conclusion
Identify a risk associated with using a bunsen burner.
Burns
Scientific equipment required to measure time.
Stopwatch
Identify the part of the scientific report shown;
1) Pour 100mL of milk into a 250mL beaker.
2) Assemble apparatus; Bunsen burner, Tripod, Wire gauze.
3) Place beaker on the wire gauze.
4) Light bunsen and heat beaker of milk until bubbles form.
Method
Give a CONTROL (receives no treatment) for this experiment.
Rust formed on the nail which was in salt solution and did not form on the nail which was immersed in olive oil.
Nail in air (not immersed in any liquid)
Which part of the scientific report is shown?
Milk has a higher boiling point relative to water.
CONCLUSION
What should you do if you experience a burn?
Place burnt area under cool running tap water for 15 minutes.
Scientific equipment required to swirl liquids.
Conical flask
Identify the part of the scientific report this has been derived from.
The boiling point of water will be 100oC.
Hypothesis (prediction/educated guess)
Identify the INDEPENDENT VARIABLE AND DEPENDENT VARIABLE.
To observe and measure the effects of different exercises on pulse rate.
Independent - different exercises
Dependent - measure pulse rate
Indicate the type of graph that would be used to show the change in temperature over a 2 week period.
LINE GRAPH
High volume - ensure volume is at medium amplitude to prevent potential hearing damage.
Scientific equipment used to measure liquids
Measuring cylinder
Indicate why this is considered to be a good METHOD.
1) Pour 100mL of milk into a 250mL beaker.
2) Assemble apparatus; Bunsen burner, Tripod, Wire gauze.
3) Place beaker on the wire gauze.
4) Light bunsen and heat beaker of milk until bubbles form.
- Numbered steps
- No personal pronouns E.g. I, me, we, you, he/she
- Begins with an action verb
- Quantities and amounts given
Identify the INDEPENDENT VARIABLE AND DEPNDENT VARIABLE
Rust formed on the nail which was in salt solution and did not form on the nail which was immersed in olive oil.
INDEPENDENT VARIABLE - nail in salt solution and nail in oil
DEPENDENT VARIABLE - rust formation /measure length of rust
Identify the independent and dependent variable;
Measuring the effects of different musical genres on pulse/heart rate.
Independent - different music genres
Dependent - pulse rate
What are the problems associated with;
- Washing hot glassware
- Touching metallic objects that have been heated
Hot metallic objects can reach temperatures in excess of 100oC and can cause severe burns.
Scientific equipment used for protection
Safety goggles
Lab coat
Identify the DEPENDENT and INDEPENDENT VARIABLES.
1) Pour 100mL of milk into a 250mL beaker.
2) Assemble apparatus; Bunsen burner, Tripod, Wire gauze.
3) Place beaker on the wire gauze.
4) Light bunsen and heat beaker of milk until bubbles form.
Dependent variable (observe - formation of bubbles)
No INDEPENDENT VARIABLE (factor we change)
E.g. heating milk vs heating water
Measure the time taken for flat paper and crumpled paper to fall from a height of 1m.
Independent variable?
Dependent variable?
Control?
Independent variable - shape of paper
Dependent variable - Time taken for drop
Control - No control
Identify the part of a report that CONNECTS your CONCLUSION to other studies (SECONDARY INTERNET SOURCES)
Discussion
What does corrosive mean?
Chemical substances that can cause burns.
Scientific equipment required to heat water to a temperature of 100oC.
Beaker / Bunsen / Tripod / Wire gauze