Numbers & Patterns
What comes next? 1, 3, 5…
7
Which is heavier: 2 kg water or 2 kg sand?
same
A car travels 10 km in 1 hour. What is its speed?
10 km/h
How many months have 28 days?
all months
What force pulls objects down to the Earth?
Gravity
What comes next? 2, 4, 8, 16, …
32
Which is heavier: 1 L water or 1 L oil?
1 L water
You walk 2 km in 20 minutes. How far do you walk in 1 hour?
6 km
If you pass the person in second place, what place are you now?
second
Which has more energy: a moving ball or a still ball?
moving ball
What number is missing? 3, 6, 9, __, 15
12
A watermelon is 5 kg, an apple is 1 kg. How many apples = watermelon?
5
A bike moves 15 km in 30 minutes. What is its speed in km/h?
30 km/h
Some months have 30 days, some have 31 days. How many have 31?
7
A ball is rolling and slows down. Why?
Because of friction
What comes next? 1, 1, 2, 3, 5, __, 13
8
5 kg sugar or 5 kg feathers, heavier?
same
A train travels 120 km in 2 hours and 30 minutes. What is the average speed?
120 ÷ 2.5 = 48 km/h
What 2 things can you never eat for breakfast?
Lunch and dinner
A feather and a stone fall at the same time (no air). Which hits the ground first?
Both at the same time
Fill the blank: 2, 6, 12, 20, __
30
A bag of apples weighs 3 kg. A bag of oranges weighs 2 kg. If you buy 2 bags of apples and 3 bags of oranges, what is the total weight?
2 × 3 kg + 3 × 2 kg = 6 + 6 = 12 kg
A car travels 90 km at 60 km/h and then 60 km at 30 km/h. What is the average speed for the whole trip?
total hour: 90 ÷ 60 = 1.5 h
60 ÷ 30 = 2 h
all = 3.5 h
Two fathers and two sons go fishing. Only three people are fishing. How is this possible?
Grandfather, father, son (3 people = 2 fathers + 2 sons)
An object is at rest. You push it slightly. It moves. Why?
Because of a small force (Newton’s first law / motion caused by force)