1. Alice investigates Wonderland Forces Dissolving Growth

2. Forces I wonder what factor most affects how long I take to fall? Size of Alice’s dress Temperature of air Alice’s Weight Width of hole

3. This is not a useful factor to investigate! We are going to keep this the same to make it a fair test!

4. Yes the dress size will affect the time it takes Alice to fall. This is what we will change!

5.  How will we measure the size of Alice’s dress? No! The ruler measures length but it’s too small! No! The scales measures weight not length! Yes! The tape measure shows length in cm!

6. How will we measure how long it takes to fall? No! The ruler measures length not time! No! The clock can only measure time in minutes and is not precise enough! Yes! The stopwatch can measure the time taken to fall in seconds! 

7.  What shall we keep the same to make it a fair test? No! We are measuring the time taken to fall! No! We are changing the dress size! Yes! The height must be kept constant! Time to fallDress size Height of fall

8.  What should Alice use as a safety precaution? No! The parachute will affect the results! No! She may bounce off the trampoline! Yes! The cushions will soften her impact!

9.  How should we show the results? Results Dress size (cm)5075100 Time take to fall 10 m (seconds) 468

10.    Dress size (cm) Time to fall (seconds) 10050 4 8 As the dress size increases the time to fall stays the same. As the dress size increases the time to fall decreases As the dress size doubles the time to fall doubles What conclusion can you make from the results?

11. Use a toy person in a small dress. Use a person in a dress. Use a small weight and a parachute.  How could you investigate this in the classroom? How could you make the results more reliable? Use a smaller height. Use a more precise stopwatch. Repeat your readings.  

12. I wonder what factor most affects how quickly the sugar will dissolve in the tea? Type of cup Direction you stir the tea Type of sugar Type of tea Dissolving

13. This is not a useful factor to investigate! We are going to keep this the same to make it a fair test!

14. Yes the type of sugar granules will affect the time it takes to dissolve. This is what we will change!

15. cubesCastergranulated Which type of sugar has the smallest granules? No! The granulated sugar has medium granules! No! The sugar cubes have the biggest granules! Yes! The caster sugar is a very fine powder so has the smallest!  

16. How will we measure how long it takes to dissolve? No! The thermometer measures temperature not time! No! The calendar can only measure time in days and is not precise enough! Yes! The stopwatch can measure the time taken to dissolve in seconds! 

17.  What shall we keep the same to make it a fair test? No! We are measuring the time taken to dissolve! No! We are changing the size of the granules! Yes! The mass of sugar in grams must be the same! Time to dissolve Size of granules Mass of sugar

18.  What should we use as a safety precaution? No! The oven gloves will make it difficult to hold equipment! No! The ear protectors mean you can’t hear any safety warnings! Yes! The goggles will protect your eyes against hot liquids and powder!

19.   How should we show the results? Results Type of sugarCubesGranulatedCaster Time take to dissolve (seconds) 302520

20. Time to dissolve (seconds) CubesGranulated 20 25 Caster 30 Type of sugar    Cubes will dissolve quicker than powder. As the granule size decreases the time to dissolve increases. As the granule size decreases the time to dissolve decreases. What conclusion can you make from the results?

21. Use a tea in a foam cup covered with lid. Use a flask of coloured water and a Bunsen burner. Use beaker of water stirring gently.  How could you investigate this in the classroom? How could you make the results more reliable? Use less sugar. Use a smaller volume of liquid. Keep the temperature constant.   

22. I wonder what factor most affects how high a plant will grow? Amount of acid rain Type of weather Amount of soil Amount of fresh air Growth

23. This is not a useful factor to investigate! We are going to keep this the same to make it a fair test!

24. Yes the amount of acid rain will affect how high the plant will grow. This is what we will change!

25.  How will we measure the amount of acid rain each plant gets? No! The spoon will not give an accurate way to measure volume of acid! No! The beaker will not give a precise enough volume of acid! Yes! The pipette can measure a precise volume of acid in small drops!

26. How will we measure the height of the plant? No! The tape measure will not accurately measure the height as it may bend! No! The protractor measures angles not height! Yes! The metre rule will accurately measure the height and not bend over!  

27.  What shall we keep the same to make it a fair test? No! We are measuring the height of the plant! No! We are changing the amount of acid! Yes! The time to grow must be the same! Time to grow Amount of acid Height of the plant

28.  What should we use as a safety precaution? No! The glasses won’t completely protect your eyes from acid! No! The umbrella won’t protect your eyes from acid and needs holding! Yes! The goggles will completely protect your eyes from acid!

29.    How should we show the results? Results Number of drops of acid0123 Height of plant after a week (cm)60504010

30.    Acid helps a plant to grow better. Large amounts of acid can have a big effect on a plant’s growth. Small amounts of acid can have a big effect on a plant’s growth. What conclusion can you make from the results? Height of plant (cm) 40 60 Number of drops of acid 20 1 23

31. Use diluted acid on trees. Use diluted acid on water cress seeds. Use concentrated acid on acorns.  How could you investigate this in the classroom? How could you make the results more reliable? Use acid and plant food. Use slower growing plants. Keep the brightness constant. 